- abandon13
- abbreviation23
- abdication18
- abduction18
- aberration14
- abjection25
- abjuration24
- ablation13
- ablution14
- abnegation17
- abolition14
- abomination19
- aboon9
- abortion12
- abrasion12
- abreaction17
- abrogation16
- abruption17
- abscission17
- absolution16
- absorption17
- abstention15
- abstraction18
- abutilon14
- acceleration20
- accentuation21
- acceptation21
- accession16
- acclamation22
- acclimation22
- acclimatization35
- accommodation27
- accordion17
- accreditation21
- accretion16
- acculturation23
- accumulation25
- accusation18
- accustomation24
- acetification23
- acetylation18
- acidification24
- acidulation18
- acquisition25
- acromion15
- actinon12
- action10
- activation18
- actualization28
- actuation14
- acylation16
- adaptation15
- adaption13
- addiction15
- addition11
- adduction16
- adhesion12
- adjudication28
- adjunction26
- adjuration22
- administration20
- admiration15
- admission14
- admonition16
- adnation11
- adoption13
- adoration11
- adsorption15
- adulation13
- adulteration16
- adumbration20
- advection18
- advocation19
- advowson17
- aeon5
- aeration9
- aerosolization25
- aestivation16
- affectation21
- affection19
- affiliation19
- affirmation21
- affixation24
- affliction21
- afforestation20
- affusion16
- afternoon14
- agglomeration22
- agglutination21
- aggradation17
- aggravation20
- aggregation18
- aggression15
- agitation12
- aglycon16
- agnation12
- agon7
- aileron9
- alation9
- aldolization25
- alencon13
- aleuron10
- alienation13
- alimentation18
- alkalinization31
- alkylation19
- allegation15
- allegorization28
- alleviation18
- alliteration15
- allocation16
- allocution17
- allusion12
- alluvion16
- alphabetization34
- alteration12
- altercation16
- alternation14
- amalgamation22
- amazon19
- ambition15
- ambiversion22
- ambulation19
- amelioration17
- ammoniation19
- ammonification28
- ammunition19
- amnion11
- amortization25
- amotion11
- amplification27
- amputation18
- anacoluthon20
- anagrammatization36
- analyzation25
- anchorperson22
- ancon10
- andiron10
- anglicization30
- angulation16
- animadversion23
- animalization28
- animation14
- anion7
- annexation20
- annihilation18
- annotation13
- annulation15
- annunciation20
- anodization23
- anon6
- anthelion14
- anthemion16
- anthropomorphization44
- antiabortion17
- antiadministration25
- antiaggression20
- antiassimilation22
- antibaryon17
- anticipation20
- anticodon15
- anticollision20
- anticonservation26
- anticorrosion18
- anticorruption23
- antidefamation23
- antidepression20
- antidesegregation24
- antidesertification28
- antidilution17
- antidiscrimination28
- antielectron18
- antievolution21
- antifashion18
- antifriction20
- antilepton16
- antimiscegenation28
- antineutron15
- antinucleon19
- antiorganization30
- antiphon15
- antipollution21
- antiprostitution22
- antiproton15
- antiquation23
- antirecession18
- antireflection23
- antirejection27
- antireligion17
- antisegregation21
- antispeculation25
- antisubversion24
- antiunion13
- antivivisection28
- antlion10
- aphelion15
- apparition17
- appellation20
- apperception25
- application22