| Scrabble Word | Definition |
| acclimatization30 | The act of acclimatizing; the process of inuring to a new climate, or the state of being so inured. |
| alphabetization31 | Alternative form of alphabetisation |
| 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. |
| cannibalization28 | The act of cannibalizing. |
| catheterization29 | The procedure of introducing a catheter. |
| circularization28 | The distribution of publicity circulars. |
| 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 |
| 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. |
| 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. |
| 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. |
| 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.] |
| 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. |
| 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?) |
| Scrabble Word | Definition |
| alation7 | The state of being winged. |
| amotion9 | removal; ousting, especially, of a corporate officer from office |
| antlion7 | Any of various species of insects, many of them nocturnal, in the family Myrmeleontidae. The adults superficially resemble the unrelated damselflies. The larvae bury themselves in sand below a cone-shaped pit in which they trap insects such as ants. |
| auction9 | A public event where goods or property are sold to the highest bidder. |
| bastion9 | (architecture) A projecting part of a rampart or other fortification. |
| billion9 | (US, modern British & Australian, short scale) a thousand million (logic: 1,000 × 1,000^2): 1 followed by nine zeros, 109; a milliard |
| bullion9 | A bulk quantity of precious metal, usually gold or silver, assessed by weight and typically cast as ingots. |
| campion13 | Some flowering plants of the genus Lychnis. |
| caption11 | (typography) The descriptive heading or title of a document or part thereof |
| carrion9 | (chiefly uncountable) Dead flesh; carcasses. |
| Scrabble Word | Definition |
| action8 | The effort of performing something. |
| amnion8 | (anatomy) The innermost membrane of the fetal membranes of reptiles, birds, and mammals; the sac in which the embryo is suspended. |
| basion8 | (anatomy) The middle of the anterior margin of the foramen magnum of the skull. |
| bunion8 | (pathology) A bump or bulge on the first joint of the big toe caused by the swelling of a sac of fluid under the skin. |
| camion10 | A truck or wagon, especially one used to transport ordnance. |
| cation8 | (physical chemistry) a positively charged ion, i.e. one that would be attracted to the cathode in electrolysis |
| durion7 | Alternative form of durian |
| ethion9 | (organic chemistry) An organophosphate insecticide, [(dethoxyphosphinothioylthio)methylthio]-diethoxy-thioxophosphorane, that is known to neutralise the neural enzyme acetylcholinesterase. |
| fanion9 | A small flag used for marking positions, especially by soldiers and surveyors. |
| fusion9 | The act of merging separate elements, or the result thereof. |
| Scrabble Word | Definition |
| anion5 | A negatively charged ion. |
| avion8 | |
| axion12 | (physics) A hypothetical subatomic particle postulated to resolve certain symmetry problems concerning the strong nuclear force. |
| inion5 | (anatomy) A small protuberance on the external surface of the back of the skull near the neck; the external occipital protuberance. |
| onion5 | A monocotyledonous plant (Allium cepa), allied to garlic, used as vegetable and spice. |
| prion7 | (molecular biology) A self-propagating misfolded conformer of a protein that is responsible for a number of diseases that affect the brain and other neural tissue. |
| scion7 | A descendant, especially a first-generation descendant of a distinguished family. |
| union5 | (countable) The act of uniting or joining two or more things into one. |