| 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. |
| 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. |
| 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. |
| 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. |
| antirejection22 | (medicine) Acting to prevent rejection of a transplanted organ or tissue |
| 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. |
| 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. |
| annihilation15 | The act of destroying or otherwise turning into nothing, or nonexistence |
| annunciation14 | The act of annunciating. |
| 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. |
| antidilution13 | (finance) Preventing share dilution. |
| antifriction17 | Reducing or intended to reduce friction. |
| antireligion13 | Opposed to or acting against religion |
| apperception20 | (uncountable, psychology and philosophy, especially Kantianism) The mind's perception of itself as the subject or actor in its own states, unifying past and present experiences; self-consciousness, perception that reflects upon itself. |
| Scrabble Word | Definition |
| 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.] |
| 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. |
| acquisition22 | The act or process of acquiring. |
| 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). |
| alleviation14 | the act of alleviating; relief or mitigation. |
| altercation13 | Heated or angry dispute |
| alternation11 | The reciprocal succession of (normally two) things in time or place; the act of following and being followed by turns; alternate succession, performance, or occurrence |
| ambiversion18 | (psychology) A personality trait having balanced characteristics of both extroversion and introversion. |
| 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. |
| 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. |
| affixation23 | The adding of an affix to a word. |
| 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. |
| 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. |
| agitation10 | The act of agitating, or the state of being agitated; the state of being disrupted with violence, or with irregular action; commotion. |
| animation11 | The act of animating, or giving life or spirit. |
| anthelion12 | A faint, white halo rarely seen in the sky opposite the sun on the parhelic circle |
| 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.] |
| acromion12 | (anatomy) The outermost point of the shoulder blade. |
| 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?) |
| 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 |
| allusion8 | An indirect reference; a hint; a reference to something supposed to be known, but not explicitly mentioned |
| alluvion11 | (law) The increase in the area of land due to the deposition of sediment (alluvium) by a river. |
| ambition12 | (uncountable, countable) Eager or inordinate desire for some object that confers distinction, as preferment, honor, superiority, political power, or literary fame; desire to distinguish one's self from other people. |
| aphelion13 | (astronomy) The point in the elliptical orbit of a planet, comet, etc., where it is farthest from the Sun. |
| audition9 | (countable) A performance, by an aspiring performer, to demonstrate suitability or talent. |
| aversion11 | Opposition or repugnance of mind; fixed dislike. |
| aviation11 | The art or science of making and flying aircraft. |