| Scrabble Word | Definition |
| acanthocephalan27 | Any of parasitic intestinal worms comprising the phylum Acanthocephala. [First attested late 19th c.] |
| acclimatization30 | The act of acclimatizing; the process of inuring to a new climate, or the state of being so inured. |
| acetophenetidin23 | phenacetin |
| agribusinessman20 | A businessman involved in agribusiness. |
| agribusinessmen20 | plural of agribusinessman |
| alphabetization31 | Alternative form of alphabetisation |
| antiegalitarian16 | (sociology) Opposing egalitarianism. |
| antilibertarian17 | (politics) Opposing libertarianism. |
| antisegregation17 | (sociology) Opposed to segregation, especially racial segregation |
| antispeculation19 | (economy) Opposing or countering financial speculation. |
| antivivisection23 | opposed to vivisection |
| autocorrelation17 | (statistics, signal processing) The cross-correlation of a signal with itself: the correlation between values of a signal in successive time periods. |
| autotransfusion18 | (medicine) A blood transfusion in which a person receives their own blood, extracted previously. |
| Scrabble Word | Definition |
| administration17 | (uncountable) The act of administering; government of public affairs; the service rendered, or duties assumed, in conducting affairs; the conducting of any office or employment; direction. |
| aerosolization23 | The creation of an aerosol; the creation of a fine mist or many small droplets. |
| alkalinization27 | The conversion of something to an alkali. |
| allegorization24 | The act of turning into allegory, or of understanding in an allegorical sense. |
| ammonification23 | (biochemistry) The formation of ammonia or its compounds from nitrogenous compounds, especially as a result of bacterial decomposition. |
| antiaggression16 | The lack or absence of aggression. |
| anticarcinogen19 | (medicine) Any substance that reduces the occurrence or severity of cancers. |
| anticorruption18 | Opposed to or combating corruption |
| antidefamation20 | Opposing the defamation of a particular group. Chiefly in direct or oblique reference to the Anti-Defamation League. |
| antidepression17 | (economy) Opposing or countering economic depression. |
| antireflection19 | (optics) That which inhibits reflection |
| antisubversion19 | Opposing or countering political subversion. |
| apolipoprotein20 | (biochemistry) Any protein that can bind with a lipid to form a lipoprotein |
| authentication19 | something which validates or confirms the authenticity of something |
| automatization25 | The process of making an action of a higher animal reflexive. |
| autosuggestion16 | The practice of suggesting thoughts to oneself, as in autohypnosis. |
| axiomatisation23 | Alternative form of axiomatization |
| axiomatization32 | The reduction of some system or concept to a set of axioms. |
| Scrabble Word | Definition |
| accommodation22 | (chiefly Britain, usually a mass noun) Lodging in a dwelling or similar living quarters afforded to travellers in hotels or on cruise ships, or prisoners, etc. |
| accreditation18 | The giving of credentials. |
| acculturation17 | A process by which the culture of an isolated society changes on contact with a different one. |
| accustomation19 | The process of becoming accustomed to something; habituation. |
| acetaminophen22 | (Canada, US) A white crystalline compound used in medicine as an anodyne to relieve pain and reduce fever. |
| acetification20 | The act of making acetous or sour; the process of converting, or of becoming converted, into vinegar. |
| acidification21 | The act or process of making something sour (acidifying), or changing into an acid. |
| actualization24 | making actual or really existent |
| afforestation19 | The act or process of creating a new forest where none had existed before, or reforestation of areas long deforested. |
| agglomeration17 | The act or process of collecting in a mass; a heaping together. |
| agglutination15 | The act of uniting by glue or other tenacious substance; the state of being thus united; adhesion of parts. |
| amplification22 | The act, or result of amplifying, enlarging, extending or adding. |
| anglicization25 | American spelling and Oxford British English standard spelling of anglicisation. |
| animadversion19 | (countable) A criticism, a critical remark. |
| animalization24 | The act of animalizing; the giving of animal life, or endowing with animal properties. |
| anticollision15 | Acting to combat or prevent collisions |
| anticorrosion15 | Preventing corrosion. |
| antievolution16 | Opposing the teaching or espousal of evolutionary theories, often specifically the Darwinian theory of natural selection |
| antipollution15 | Anything that helps the environment by reducing pollution. |
| antirecession15 | (economy) Serving to counter a financial recession. |
| Scrabble Word | Definition |
| abbreviation19 | The result of shortening or reducing; abridgment. [First attested around 1350 to 1470.] |
| acceleration16 | (uncountable) The act of accelerating, or the state of being accelerated; increase of motion or action; as opposed to retardation or deceleration. |
| accentuation16 | Act of accentuating; applications of accent. |
| accumulation18 | The act of amassing or gathering, as into a pile. |
| adjudication23 | The act of adjudicating, of reaching a judgement. |
| adulteration13 | The action of adulterating, being mixed with extraneous material, illicit substitution of one substance for another. |
| aesthetician17 | One who studies aesthetics; a student of art or beauty. |
| agglutinogen15 | (biochemistry) Any antigen that stimulates the production of an agglutinin |
| aldolization22 | (organic chemistry) The formation of an aldol, normally from a corresponding aldehyde |
| alimentation14 | (law) Alimony. |
| alliteration12 | The repetition of consonant sounds at the beginning of two or more words immediately succeeding each other, or at short intervals. |
| amalgamation17 | The process of amalgamating; a mixture, merger or consolidation. |
| amelioration14 | The act of making better. |
| amortization23 | The reduction of loan principal over a series of payments. |
| anchorperson19 | The primary reporter on a television news broadcast. |
| annihilation15 | The act of destroying or otherwise turning into nothing, or nonexistence |
| annunciation14 | The act of annunciating. |
| antediluvian16 | Ancient or antiquated. |
| antiabortion14 | Opposed to the practice or legalization of abortion. |
| anticipation16 | The act of anticipating, taking up, placing, or considering something beforehand, or before the proper time in natural order. |
| Scrabble Word | Definition |
| abecedarian16 | Someone who is learning the alphabet. [Early 17th century.] |
| abomination15 | (countable) An abominable act; a disgusting vice; a despicable habit. [First attested around 1150 to 1350.] |
| abstraction15 | The act of abstracting, separating, withdrawing, or taking away; withdrawal; the state of being taken away. [First attested around 1350 to 1470.] |
| academician18 | (now chiefly US) A member (especially a senior one) of the faculty at a college or university; an academic. [from 17th c.] |
| acceptation17 | (obsolete) Acceptance; reception; favorable reception or regard; the state of being acceptable. |
| acclamation17 | A shout of approbation, favor, or assent; eager expression of approval; loud applause. |
| acclimation17 | The process of becoming, or the state of being, acclimated, or habituated to a new climate; acclimatization. |
| acetylation16 | (organic chemistry) The reaction of a substance with acetic acid or one of its derivatives; the introduction of one or more acetyl groups into a substance. |
| acidulation14 | The act of acidulating. |
| acoustician15 | One versed in acoustics, especially a physicist who specializes in acoustics. |
| acquisition22 | The act or process of acquiring. |
| actinomycin20 | (biochemistry, pharmacology) Any of a class of toxic polypeptide antibiotics found in soil bacteria of genus Streptomyces. |
| adumbration16 | (uncountable) The state of being in shadow or shade; (countable) a shadow. |
| aestivation14 | (biology) A state of inactivity and metabolic depression during summer: the summer version of hibernation. |
| affectation19 | An attempt to assume or exhibit what is not natural or real; false display; artificial show. |
| affiliation17 | The relationship resulting from affiliating one thing with another. |
| affirmation19 | That which is affirmed; a declaration that something is true. |
| aggradation14 | (geology) Increase in land elevation due to the deposition of sediment. |
| aggravation16 | The act of aggravating, or making worse; used of evils, natural or moral; the act of increasing in severity or heinousness; something additional to a crime or wrong and enhancing its guilt or injurious consequences. |
| aggregation14 | The act of collecting together (aggregating). |
| Scrabble Word | Definition |
| abdication15 | (obsolete) The act of disowning or disinheriting a child. [Attested from the mid 16th century until the mid 17th century.] |
| aberration12 | The act of wandering; deviation from truth, moral rectitude; abnormal; divergence from the straight, correct, proper, normal, or from the natural state. [Late 16th century.] |
| abjuration19 | A solemn recantation or renunciation on oath; as, an abjuration of heresy. [First attested around 1350 to 1470.] |
| abnegation13 | A denial; a renunciation; denial of desire or self-interest. [First attested around 1350 to 1470.] |
| abreaction14 | (psychoanalysis) The re-living of an experience with a view to purging its emotional dross. [First attested in the early 20th century.] |
| abrogation13 | The act of abrogating; a repeal by authority; abolition. [First attested in the mid 16th century.] |
| abscission14 | The act or process of cutting off. |
| absolution12 | (ecclesiastical) An absolving of sins from ecclesiastical penalties by an authority. [First attested around 1150 to 1350.] |
| absorption14 | The act or process of absorbing or of being absorbed as, |
| abstention12 | (obsolete) The act of restraining oneself. [Attested from the early 16th century until the med 17th century.] |
| accusation14 | The act of accusing. |
| activation15 | Making active and effective; bringing into a state of activity. |
| actomyosin17 | (biochemistry) A protein complex composed of actin and myosin, found in muscle fibres. |
| adaptation13 | (uncountable) The process of adapting something or becoming adapted to a situation; adjustment, modification. |
| adjunction20 | The act of joining; the thing joined or added. |
| adjuration18 | A grave warning. |
| admiration13 | A positive emotion including wonder and approbation; the regarding of another as being wonderful |
| admonition13 | Gentle or friendly reproof; counseling against fault or oversight; warning. |
| adsorption13 | The adhesion of a liquid or gas on the surface of a solid material, forming a thin film on the surface. |
| advocation16 | (archaic) Advocacy; the act of advocating or pleading. |
| Scrabble Word | Definition |
| abduction14 | Leading away; a carrying away. [Early 17th century.] |
| abjection20 | A low or downcast condition; meanness of spirit; abasement; degradation. [First attested from around (1350 to 1470).] |
| abolition11 | The act of abolishing; an annulling; abrogation [First attested around the early 16th century.] |
| abruption13 | (archaic) A sudden termination or interruption. [First attested in the early 17th century.] |
| accession13 | A coming to; the act of acceding and becoming joined |
| accordion14 | A small, portable, keyed wind instrument, whose tones are generated by play of the wind from a squeezed bellows upon free metallic reeds. |
| accretion13 | The act of increasing by natural growth; especially the increase of organic bodies by the internal accession of parts; organic growth. |
| actuation11 | The act of putting into motion. |
| acylation14 | (organic chemistry) The process of adding an acyl group to a compound. |
| addiction13 | (medicine) A state that is characterized by compulsive drug use or compulsive engagement in rewarding behavior, despite negative consequences. |
| adduction13 | The act of adducing or bringing forward. |
| ademption14 | (law) In the law of wills, the determination of what happens when property left under a will is no longer in the testator's estate when the testator dies. |
| admission12 | The act or practice of admitting. |
| adoration10 | (countable) An act of religious worship. |
| adrenalin10 | Alternative spelling of adrenaline |
| adulation10 | Flattery; fulsome praise. |
| advection15 | (earth science, chemistry) The horizontal movement of a body of atmosphere (or other fluid) along with a concurrent transport of its temperature, humidity etc. |
| affection17 | The act of affecting or acting upon. |
| aflatoxin19 | (toxicology) Any of a family of mycotoxins, produced by molds of the Aspergillus genus, that can be toxic, carcinogenic, mutagenic or teratogenic; typically found as contaminants of animal food or peanuts. |
| afternoon12 | The part of the day from noon or lunchtime until sunset, evening, or suppertime or 6pm. |
| Scrabble Word | Definition |
| ablation10 | (obsolete) A carrying or taking away; removal. [First attested around 1350 to 1470.] |
| ablution10 | The act of washing something. |
| abortion10 | (medicine) The expulsion from the womb of a foetus or embryo before it is fully developed, with loss of the foetus; either naturally as a spontaneous abortion (now usually called a miscarriage), or deliberately as an induced abortion. [from 16th c.] |
| abrasion10 | The act of abrading, wearing, or rubbing off; the wearing away by friction. [First attested in the mid 17th century.] |
| abscisin12 | Alternative spelling of abscissin |
| abutilon10 | Any of the various tropical flowering plants of the genus Abutilon, such as the flowering maple, Indian mallow, or Chinese lantern. [First attested in the late 16th century.] |
| acaridan11 | (zoology) A member of the sub-class Acarina of arachnids, which includes mites and ticks. |
| acrolein10 | (organic chemistry) A pungent, acrid, poisonous liquid aldehyde, CH2=CH-CH=O, made by the destructive distillation of glycerol. |
| acromion12 | (anatomy) The outermost point of the shoulder blade. |
| actinian10 | A sea anemone (of the order Actiniaria). |
| adaption11 | Alternative form of adaptation |
| addition10 | (uncountable) The act of adding anything. |
| adhesion12 | The ability of a substance to stick to an unlike substance. |
| adnation9 | (botany) The adhesion or cohesion of different floral verticils or sets of organs. |
| adoption11 | The act of adopting. (Can we add an example for this sense?) |
| advowson15 | (Britain, ecclesiastical law) The right to present a nominee to a vacant ecclesiastical benefice or church office. |
| aequorin17 | (biochemistry) A photoprotein, isolated from luminescent jellyfish and other marine organisms, composed of two distinct units: the apoprotein apoaequorin and the prosthetic group coelenterazine. |
| aeration8 | The process by which air is circulated through or mixed with a substance such as soil or a liquid. |
| affusion14 | The pouring of liquid, especially as a hydrotherapy. |
| agnation9 | consanguinity by a line of males only, as distinguished from cognation |
| Scrabble Word | Definition |
| abandon10 | (transitive) To give up or relinquish control of, to surrender or to give oneself over, or to yield to one's emotions. [First attested from around (1350 to 1470)] |
| abdomen12 | (obsolete) The fat surrounding the belly. [mid 16th c. – late 17th c.] |
| abelian9 | (mathematics) Having a commutative defining operation. [Mid 19th century.] |
| abstain9 | (transitive, reflexive, obsolete) Keep or withhold oneself. [Attested from around 1350 to 1470 until the mid 16th century.] |
| acrasin9 | A chemotactic agent produced by some slime moulds |
| acrogen10 | (biology) any flowerless plant whose growth takes place at the tip of the main stem, especially the cryptogam ferns |
| actinon9 | (physics, dated) The isotope of radon 21986Rn |
| acyloin12 | (organic chemistry) Any α-hydroxy ketone. |
| adjourn15 | (transitive) To postpone. |
| adwoman13 | A woman working in advertising; a female adman. |
| adwomen13 | plural of adwoman |
| aeolian7 | of, or relating to the wind. |
| aeonian7 | Alternative spelling of eonian |
| aglycon13 | Alternative spelling of aglycone |
| agnomen10 | An additional cognomen given, as an honour, to a Roman citizen. |
| aileron7 | The hinged part on the trailing edge of an airplane wing, used to control longitudinal turns. |
| alation7 | The state of being winged. |
| albumen11 | The white part of an egg; being mostly the protein albumin and water. |
| albumin11 | (biochemistry) Any of a class of monomeric proteins that are soluble in water, and are coagulated by heat; they occur in egg white, milk etc; they function as carrier protein for steroids, fatty acids, and thyroid hormones and play a role in stabilizing extracellular fluid volume. |
| alencon9 | |
| Scrabble Word | Definition |
| acetin8 | (organic chemistry) the triglyceride of acetic acid |
| action8 | The effort of performing something. |
| acumen10 | Quickness of perception or discernment; penetration of mind; the faculty of nice discrimination. |
| adjoin14 | (transitive) To be in contact or connection with. |
| adnoun7 | (grammar) an adjective used as a noun (sensu stricto), an absolute adjective |
| afghan13 | A blanket or throw, usually crocheted or knitted. |
| aidman9 | An army medical corpsman attached to a field unit. |
| aidmen9 | plural of aidman |
| airman8 | A pilot of an aircraft. |
| airmen8 | plural of airman |
| ajowan16 | Alternative form of ajwain |
| alanin6 | Archaic form of alanine. |
| aldrin7 | An insecticide and persistent organic pollutant containing a naphthalene-derived compound. |
| alevin9 | Newly hatched fish, especially salmon. |
| alexin13 | (biochemistry, dated) A protective substance that exists in the serum or other bodily fluid and is capable of killing microorganisms; complement. |
| alumin8 | |
| amazon17 | A tall, strong, athletic woman. |
| ameban10 | Of, pertaining to, or resembling an amoeba. |
| amidin9 | (chemistry) Starch modified by heat so as to become a transparent mass, like horn. It is soluble in cold water. |
| amnion8 | (anatomy) The innermost membrane of the fetal membranes of reptiles, birds, and mammals; the sac in which the embryo is suspended. |
| Scrabble Word | Definition |
| aboon7 | (Scotland, Britain dialectal) Above. |
| acorn7 | The fruit of the oak, being an oval nut growing in a woody cup or cupule. |
| actin7 | (biochemistry, uncountable) A globular structural protein that polymerizes in a helical fashion to form an actin filament (or microfilament). |
| adman8 | A person in the business of devising, writing, illustrating or selling advertisements. |
| admen8 | plural of adman |
| adorn6 | To make more beautiful and attractive; to decorate. |
| adown9 | (archaic) Down, downward; to or in a lower place. |
| again6 | Another time; once more. [from 14thc.] |
| algin6 | Any of various gelatinous gums, derivatives of alginic acid, derived from algae. |
| alien5 | Any life form of extraterrestrial or extradimensional origin. |
| align6 | (intransitive) To form a line; to fall into line. |
| aloin5 | (pharmacology) A glycoside derivative of anthracene, found in aloe, that is used as a laxative. |
| amain7 | (archaic, literary) With all of one's might; mightily; forcefully, violently. [from 16th c.] |
| ancon7 | (obsolete) The corner of a wall or rafter. |
| anion5 | A negatively charged ion. |
| anyon8 | (physics) Any particle that obeys a continuum of quantum statistics, only two of which are the standard Bose-Einstein and Fermi-Dirac statistics. |
| apian7 | Relating to bees. |
| apron7 | An article of clothing worn over the front of the torso and/or legs for protection from spills; also historically worn by Freemasons and as part of women's fashion. |
| argon6 | The chemical element (symbol Ar) with an atomic number of 18. The third most abundant gas in the Earth's atmosphere, it is a colourless, odourless, inert noble gas. |
| arpen7 | Alternative form of arpent (old unit of measure) |
| Scrabble Word | Definition |
| aeon4 | (Australia, New Zealand, Britain) Alternative spelling of eon |
| agin5 | (colloquial or now often humorous) Alternative form of again |
| agon5 | (countable) A struggle or contest; conflict; especially between the protagonist and antagonist in a literary work. |
| airn4 | |
| akin8 | (of persons) Of the same kin; related by blood. |
| alan4 | Alternative form of alaunt |
| amen6 | (Discuss(+) this sense) At the end of religious prayers: so be it. |
| amin6 | (historical) An arbitrator who assessed and collected revenue in the pargana. |
| anon4 | (archaic) Straight away; at once. |
| axon11 | (cytology) A nerve fibre which is a long slender projection of a nerve cell, and which conducts nerve impulses away from the body of the cell to a synapse. |
| ayin7 | The sixteenth letter of many Semitic alphabets/abjads (Phoenician, Aramaic, Hebrew, Syriac, Arabic and others). |
| azan13 | (Islam) Alternative spelling of adhan |
| azon13 | |