15-letter words starting with A

15-letter words starting with A number 384, from familiar “accomplishments” to the 37-point “apophthegmatize.”

384 wordsTop pick ACCOMPLISHMENTSHighest score APOPHTHEGMATIZE 37

4 of 384 are everyday words (1%). Mostly rare words: great for Scrabble, tough for daily puzzles.

Letter
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z

P starts the most 15-letter words (695); Y starts the fewest (2). A ranks #6 of 26. The bar under each letter shows the size of its list.

Length
2
3
4
5
6
7
8
9
10
11
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15

Best words to play first 384 · most-used first

ACCOMPLISHMENTS₂₈
ADMINISTRATIONS₁₈
ACKNOWLEDGEMENT₂₈
ANTIDEPRESSANTS₁₈
ANTHROPOLOGICAL₂₃
ANTHROPOLOGISTS₂₁
APPRENTICESHIPS₂₆
ATHEROSCLEROSIS₂₀
APPROPRIATENESS₂₁
ANTHROPOMORPHIC₂₉
ARCHITECTURALLY₂₅
AUTOBIOGRAPHIES₂₃
ACKNOWLEDGMENTS₂₈
AUTHORITATIVELY₂₄
ATHEROSCLEROTIC₂₂
ASTROPHYSICISTS₂₅
AUTOCORRELATION₁₇
AERODYNAMICALLY₂₆
ANTICOMPETITIVE₂₄
ACCLIMATIZATION₃₀
ANTICHOLINERGIC₂₃
ALGORITHMICALLY₂₆
ANTHROPOCENTRIC₂₄
ANTICONVULSANTS₂₀
ACCLIMATISATION₂₁
ADENOCARCINOMAS₂₂
ACETYLSALICYLIC₂₇
ANDROSTENEDIONE₁₇
APPROACHABILITY₂₉
ASSIMILATIONIST₁₇
ATMOSPHERICALLY₂₇
ANTIPERSPIRANTS₁₉
ANTIRETROVIRALS₁₈
ADVENTUROUSNESS₁₉
AGRICULTURALIST₁₈
ARRONDISSEMENTS₁₈
ANAESTHESIOLOGY₂₂
ALUMINOSILICATE₁₉
AMBASSADORSHIPS₂₅
AUTORADIOGRAPHY₂₅
AGRANULOCYTOSIS₂₁
ANTEPENULTIMATE₁₉
AUTOTRANSFORMER₂₀
ANTICLERICALISM₂₁
ACQUISITIVENESS₂₉
APOCALYPTICALLY₂₉
AUTHENTICATIONS₂₀
ASTROBIOLOGISTS₁₈

Showing the top 48 of 384 words. See every valid word

All valid words 384

A to Z. Includes rare and Collins-only words. Linked tiles open the word's meaning, score and rhymes.

ABIOGENETICALLY₂₃
ABORIGINALITIES₁₈
ABSORBABILITIES₂₁
ABSORBEFACIENTS₂₄
ABSORPTIOMETERS₂₁
ABSTRACTIONISMS₂₁
ABSTRACTIONISTS₁₉
ACANTHOCEPHALAN₂₇
ACCEPTABILITIES₂₃
ACCEPTINGNESSES₂₂
ACCESSARINESSES₁₉
ACCESSIBILITIES₂₁
ACCESSORINESSES₁₉
ACCIDENTALITIES₂₀
ACCIDENTOLOGIES₂₁
ACCLIMATISATION₂₁
ACCLIMATIZATION₃₀
ACCOMMODATINGLY₂₈
ACCOMMODATIONAL₂₄
ACCOMPANIMENTAL₂₅
ACCOMPLISHMENTS₂₈
ACCOUNTABLENESS₂₁
ACCOUNTANTSHIPS₂₄
ACCULTURATIONAL₁₉
ACETOPHENETIDIN₂₃
ACETYLSALICYLIC₂₇
ACHONDROPLASIAS₂₃
ACHONDROPLASTIC₂₅
ACHROMATICITIES₂₄
ACHROMATISATION₂₂
ACHROMATIZATION₃₁
ACIDIMETRICALLY₂₅
ACKNOWLEDGEABLE₂₈
ACKNOWLEDGEABLY₃₁
ACKNOWLEDGEMENT₂₈
ACKNOWLEDGMENTS₂₈
ACQUIRABILITIES₂₈
ACQUISITIVENESS₂₉
ACRIMONIOUSNESS₁₉
ACROPARESTHESIA₂₂
ACTINOBIOLOGIES₂₀
ACTINOCHEMISTRY₂₇
ACTINOTHERAPIES₂₂
ADAPTABLENESSES₂₀
ADDITIONALITIES₁₇
ADENOCARCINOMAS₂₂
ADENOHYPOPHYSES₃₂
ADENOHYPOPHYSIS₃₂
ADENOIDECTOMIES₂₁
ADIATHERMANCIES₂₃
ADJUSTABILITIES₂₅
ADMINISTRATIONS₁₈
ADMIRABLENESSES₂₀
ADMISSIBILITIES₂₀
ADRENALECTOMIES₂₀
ADSORBABILITIES₂₀
ADVENTUROUSNESS₁₉
ADVERSARINESSES₁₉
ADVISABLENESSES₂₁
AERODYNAMICALLY₂₆
AERODYNAMICISTS₂₃
AEROELASTICIANS₁₇
AEROHYDROPLANES₂₄
AEROLITHOLOGIES₁₉
AEROSOLISATIONS₁₅
AEROSOLIZATIONS₂₄
AFFECTABILITIES₂₅
AFFECTIVENESSES₂₆
AFFORDABILITIES₂₄
AFFRANCHISEMENT₂₈
AFTERSENSATIONS₁₈
AGGLUTINABILITY₂₂
AGGRANDISEMENTS₂₀
AGGRANDIZEMENTS₂₉
AGGREGATENESSES₁₈
AGRANULOCYTOSES₂₁
AGRANULOCYTOSIS₂₁
AGREEABLENESSES₁₈
AGRIBUSINESSMAN₂₀
AGRIBUSINESSMEN₂₀
AGRICULTURALIST₁₈
AIRWORTHINESSES₂₁
ALBERTOSAURUSES₁₇
ALCOHOLISATIONS₂₀
ALCOHOLIZATIONS₂₉
ALCOHOLOMETRIES₂₂
ALEXIPHARMAKONS₃₃
ALGORITHMICALLY₂₆
ALKALINISATIONS₁₉
ALKALINIZATIONS₂₈
ALLEGORICALNESS₁₈
ALLEGORISATIONS₁₆
ALLEGORIZATIONS₂₅
ALLELOMORPHISMS₂₄
ALLERGENICITIES₁₈
ALLOTETRAPLOIDS₁₈
ALLOTETRAPLOIDY₂₁
ALLOTRIOMORPHIC₂₄
ALLOWABLENESSES₂₀
ALPHABETISATION₂₂
ALPHABETIZATION₃₁
ALTERNATIVENESS₁₈
ALTITUDINARIANS₁₆
ALUMINOSILICATE₁₉
ALUMINOTHERMIES₂₂
AMARYLLIDACEOUS₂₃
AMBASSADORSHIPS₂₅
AMBIDEXTERITIES₂₇
AMBIGUOUSNESSES₂₀
AMBISEXUALITIES₂₆
AMBITIOUSNESSES₁₉
AMINOPEPTIDASES₂₂
AMINOPHENAZONES₃₁
AMMONIFICATIONS₂₄
AMORPHOUSNESSES₂₂
AMPHIDIPLOIDIES₂₆
AMPHITHEATRICAL₂₇
ANACOLUTHICALLY₂₅
ANACREONTICALLY₂₂
ANAESTHESIOLOGY₂₂
ANAESTHETICALLY₂₃
ANAGRAMMATISING₂₁
ANAGRAMMATIZING₃₀
ANALOGOUSNESSES₁₆
ANALYZABILITIES₂₉
ANAMORPHOSCOPES₂₆
ANCYLOSTOMIASES₂₂
ANCYLOSTOMIASIS₂₂
ANDROGYNOPHORES₂₅
ANDROMEDOTOXINS₂₆
ANDROMONOECIOUS₂₀
ANDROMONOECISMS₂₂
ANDROSTENEDIONE₁₇
ANESTHETIZATION₂₇
ANFRACTUOSITIES₂₀
ANGUSTIROSTRATE₁₆
ANIMATRONICALLY₂₂
ANISOTROPICALLY₂₂
ANKYLOSTOMIASES₂₄
ANKYLOSTOMIASIS₂₄
ANNIHILATIONISM₂₀
ANOMALISTICALLY₂₂
ANOMALOUSNESSES₁₇
ANONYMOUSNESSES₂₀
ANSWERABILITIES₂₀
ANTAGONISATIONS₁₆
ANTAGONIZATIONS₂₅
ANTAPHRODISIACS₂₃
ANTEPENULTIMATE₁₉
ANTHROPOBIOLOGY₂₆
ANTHROPOCENTRIC₂₄
ANTHROPOGENESES₂₁
ANTHROPOGENESIS₂₁
ANTHROPOGENETIC₂₃
ANTHROPOLATRIES₂₀
ANTHROPOLOGICAL₂₃
ANTHROPOLOGISTS₂₁
ANTHROPOMETRIES₂₂
ANTHROPOMETRIST₂₂
ANTHROPOMORPHIC₂₉
ANTHROPOPATHIES₂₅
ANTHROPOPATHISM₂₇
ANTHROPOPHAGIES₂₆
ANTHROPOPHAGITE₂₆
ANTHROPOPHAGOUS₂₆
ANTHROPOPHOBIAS₂₇
ANTHROPOPHOBICS₂₉
ANTHROPOPHUISMS₂₇
ANTHROPOPSYCHIC₃₂
ANTHROPOSOPHIES₂₅
ANTHROPOSOPHIST₂₅
ANTIABORTIONIST₁₇
ANTIALCOHOLISMS₂₂
ANTIALLERGENICS₁₈
ANTIAPHRODISIAC₂₃
ANTIARRHYTHMICS₂₈
ANTICAPITALISMS₂₁
ANTICAPITALISTS₁₉
ANTICARCINOGENS₂₀
ANTICHOLESTEROL₂₀
ANTICHOLINERGIC₂₃
ANTICHRISTIANLY₂₃
ANTICLERICALISM₂₁
ANTICLERICALIST₁₉
ANTICLIMACTICAL₂₃
ANTICOINCIDENCE₂₂
ANTICOLONIALISM₁₉
ANTICOLONIALIST₁₇
ANTICOMPETITIVE₂₄
ANTICONVULSANTS₂₀
ANTICONVULSIVES₂₃
ANTICORRUPTIONS₁₉
ANTIDEPRESSANTS₁₈
ANTIDEPRESSIONS₁₈
ANTIDERIVATIVES₂₂
ANTIDEVELOPMENT₂₃
ANTIEDUCATIONAL₁₈
ANTIEGALITARIAN₁₆
ANTIFASHIONABLE₂₃
ANTIFEDERALISTS₁₉
ANTIFERROMAGNET₂₁
ANTIFILIBUSTERS₂₀
ANTIFORECLOSURE₂₀
ANTIHELMINTHICS₂₅
ANTIHISTAMINICS₂₂
ANTILIBERALISMS₁₉
ANTILIBERTARIAN₁₇
ANTILOGARITHMIC₂₃
ANTIMANAGEMENTS₂₀
ANTIMATERIALISM₁₉
ANTIMATERIALIST₁₇
ANTIMETABOLITES₁₉
ANTIMILITARISMS₁₉
ANTIMILITARISTS₁₇
ANTIMONARCHICAL₂₄
ANTIMONARCHISTS₂₂
ANTIMONOPOLISTS₁₉
ANTINATIONALIST₁₅
ANTINUCLEARISTS₁₇
ANTIOBSCENITIES₁₉
ANTIODONTALGICS₁₉
ANTIOESTROGENIC₁₈
ANTIPERISTALSES₁₇
ANTIPERISTALSIS₁₇
ANTIPERISTALTIC₁₉
ANTIPERSPIRANTS₁₉
ANTIPHLOGISTICS₂₃
ANTIPORNOGRAPHY₂₆
ANTIPROGRESSIVE₂₁
ANTIQUARIANISMS₂₆
ANTIRADICALISMS₂₀
ANTIRATIONALISM₁₇
ANTIRATIONALIST₁₅
ANTIRATIONALITY₁₈
ANTIREPUBLICANS₂₁
ANTIRETROVIRALS₁₈
ANTIROMANTICISM₂₁
ANTISEGREGATION₁₇
ANTISENTIMENTAL₁₇
ANTISEPARATISTS₁₇
ANTISEPTICISING₂₀
ANTISEPTICIZING₂₉
ANTISEXUALITIES₂₂
ANTISHOPLIFTING₂₄
ANTISOCIALITIES₁₇
ANTISPECULATION₁₉
ANTISPECULATIVE₂₂
ANTISUBVERSIONS₂₀
ANTISUBVERSIVES₂₃
ANTISYPHILITICS₂₅
ANTITHEORETICAL₂₀
ANTITHROMBOTICS₂₄
ANTITRADITIONAL₁₆
ANTITRANSPIRANT₁₇
ANTITRINITARIAN₁₅
ANTITUBERCULARS₁₉
ANTITUBERCULOUS₁₉
ANTIVIVISECTION₂₃
APHELIOTROPISMS₂₄
APOCALYPTICALLY₂₉
APOCALYPTICISMS₂₈
APOLIPOPROTEINS₂₁
APOLITICALITIES₁₉
APOPHTHEGMATISE₂₈
APOPHTHEGMATIST₂₈
APOPHTHEGMATIZE₃₇
APOTHEGMATISING₂₄
APOTHEGMATIZING₃₃
APPEALABILITIES₂₁
APPEALINGNESSES₂₀
APPENDICULARIAN₂₂
APPLICABILITIES₂₃
APPRENTICEHOODS₂₅
APPRENTICEMENTS₂₃
APPRENTICESHIPS₂₆
APPROACHABILITY₂₉
APPROPINQUATING₃₁
APPROPINQUATION₃₀
APPROPINQUITIES₃₀
APPROPRIATENESS₂₁
ARACHNOIDITISES₂₁
ARBITRARINESSES₁₇
ARBITRATORSHIPS₂₂
ARBORICULTURIST₁₉
ARCHAEBACTERIUM₂₆
ARCHAEOBOTANIES₂₂
ARCHAEOBOTANIST₂₂
ARCHAEOLOGISING₂₂
ARCHAEOLOGIZING₃₁
ARCHAEOMETRISTS₂₂
ARCHAEOPTERYXES₃₂
ARCHAEZOOLOGIES₃₀
ARCHDEACONSHIPS₂₈
ARCHEOASTRONOMY₂₅
ARCHEOBOTANISTS₂₂
ARCHEOLOGICALLY₂₆
ARCHEOMAGNETISM₂₅
ARCHEOZOOLOGIES₃₀
ARCHEOZOOLOGIST₃₀
ARCHGENETHLIACS₂₆
ARCHIDIACONATES₂₃
ARCHIEPISCOPACY₃₁
ARCHIEPISCOPATE₂₆
ARCHITECTURALLY₂₅
ARCHPRIESTHOODS₂₆
ARCHPRIESTSHIPS₂₇
ARGUMENTATIVELY₂₄
ARIBOFLAVINOSES₂₃
ARIBOFLAVINOSIS₂₃
AROMATHERAPISTS₂₂
ARRONDISSEMENTS₁₈
ARTERIALISATION₁₅
ARTERIALIZATION₂₄
ARTERIOGRAPHIES₂₁
ARTIFICIALISING₂₁
ARTIFICIALITIES₂₀
ARTIFICIALIZING₃₀
ASCLEPIADACEOUS₂₂
ASSENTIVENESSES₁₈
ASSERTIVENESSES₁₈
ASSIDUOUSNESSES₁₆
ASSIGNABILITIES₁₈
ASSIMILATIONISM₁₉
ASSIMILATIONIST₁₇
ASSOCIABILITIES₁₉
ASSOCIATIONISMS₁₉
ASSOCIATIONISTS₁₇
ASSOCIATIVITIES₂₀
ASTROBIOLOGISTS₁₈
ASTRODYNAMICIST₂₃
ASTROGEOLOGISTS₁₇
ASTRONAUTICALLY₂₀
ASTRONAVIGATION₁₉
ASTRONAVIGATORS₁₉
ASTROPHOTOGRAPH₂₆
ASTROPHYSICALLY₂₈
ASTROPHYSICISTS₂₅
ATHEROSCLEROSES₂₀
ATHEROSCLEROSIS₂₀
ATHEROSCLEROTIC₂₂
ATMOSPHERICALLY₂₇
ATRABILIOUSNESS₁₇
ATROCIOUSNESSES₁₇
ATTAINABILITIES₁₇
ATTENTIVENESSES₁₈
ATTITUDINARIANS₁₆
ATTITUDINISINGS₁₇
ATTITUDINIZINGS₂₆
ATTRIBUTIVENESS₂₀
AUDACIOUSNESSES₁₈
AUDIOCONFERENCE₂₃
AUDIOMETRICALLY₂₃
AUDIOMETRICIANS₂₀
AUTHENTICATIONS₂₀
AUTHORITATIVELY₂₄
AUTOBIOGRAPHERS₂₃
AUTOBIOGRAPHIES₂₃
AUTOCHTHONOUSLY₂₆
AUTOCORRELATION₁₇
AUTODESTRUCTING₁₉
AUTODESTRUCTIVE₂₁
AUTODIDACTICISM₂₃
AUTOGRAPHICALLY₂₆
AUTOINOCULATION₁₇
AUTOIONISATIONS₁₅
AUTOIONIZATIONS₂₄
AUTOMATISATIONS₁₇
AUTOMATIZATIONS₂₆
AUTOMORPHICALLY₂₇
AUTORADIOGRAPHS₂₂
AUTORADIOGRAPHY₂₅
AUTOSCHEDIASTIC₂₃
AUTOSCHEDIAZING₃₁
AUTOSTABILITIES₁₇
AUTOSUGGESTIONS₁₇
AUTOTETRAPLOIDS₁₈
AUTOTETRAPLOIDY₂₁
AUTOTRANSFORMER₂₀
AUTOTRANSFUSION₁₈
AUTOTROPHICALLY₂₅
AVAILABLENESSES₂₀
AXIOMATISATIONS₂₄
AXIOMATIZATIONS₃₃
AZIDOTHYMIDINES₃₄

Letters by positionIn 60% of these words the 15th letter is S.

2nd letter

N37%
R10%
C9%

3rd letter

T43%
C11%
R5%

4th letter

I32%
O17%
H13%

13th letter

I38%
S20%
O10%

14th letter

E27%
N14%
T9%

15th letter

S60%
Y10%
N7%

Highest-scoring words

Scrabble and Words With Friends points, before board bonuses

Score spreadMost of these words score 20 in Scrabble; APOPHTHEGMATIZE tops the list with 37. Scores before board bonuses.

1515 points: 6 words
16 points: 9 words
1717 points: 32 words
18 points: 26 words
1919 points: 37 words
20 points: 40 words
2121 points: 31 words
22 points: 39 words
2323 points: 34 words
24 points: 24 words
2525 points: 22 words
26 points: 24 words
2727 points: 12 words
28 points: 14 words
2929 points: 9 words
30 points: 8 words
3131 points: 8 words
32 points: 4 words
3333 points: 3 words
34 points: 1 words
3535 points: 0 words
36 points: 0 words
3737 points: 1 words

Word	Scrabble	Words With Friends	Dictionaries
APOPHTHEGMATIZE	37	39	Collins only
AZIDOTHYMIDINES	34	34	All three
AXIOMATIZATIONS	33	35	All three
ALEXIPHARMAKONS	33	36	Collins only
APOTHEGMATIZING	33	37	Collins only
ADENOHYPOPHYSES	32	31	All three
ADENOHYPOPHYSIS	32	31	All three
ARCHAEOPTERYXES	32	32	All three
ANTHROPOPSYCHIC	32	34	Collins only
ALPHABETIZATION	31	34	All three
ACHROMATIZATION	31	33	Collins only
ACKNOWLEDGEABLY	31	36	Collins only

The entries span everyday ideas such as “accomplishments” and specialist terms such as “atherosclerosis” and “autocorrelation.” Only four rank among the most common English words, so expect plenty of technical or unusual vocabulary. The dictionary totals differ: Collins lists 364, NWL2023 lists 238, and ENABLE lists 221; those overlapping totals are not meant to add up to 384.

The quick count and standout entries

There are 384 tournament-dictionary words with 15 letters that begin with A.
“Accomplishments,” “antidepressants,” and “autobiographies” are recognizable examples.
Only four entries fall within the top 25,000 English words by frequency.
“Apophthegmatize” leads the scoring list at 37 points; “azidothymidines” follows at 34.
A total of 299 entries have definitions.

Which 15-letter A words score highest?

“Apophthegmatize” scores 37, the highest listed value among these entries. “Azidothymidines” scores 34, while “axiomatizations,” “alexipharmakons,” and “apothegmatizing” each score 33. These are not words most players will recognize on sight, so check the spelling before committing valuable tiles.

The scoring standouts are a sharp contrast with familiar examples such as “accomplishments” and “apprenticeships.” A long word is not automatically a strong play: verify that every letter fits your rack and that your game accepts the word. The 22.3 average score gives context, but it does not guarantee a particular board result.

How do 15-letter words starting with A end?

Words ending in S dominate this set: 230 entries finish with that letter, compared with 38 ending in Y. The plural-heavy shape is a practical clue when a long A-word crosses a board, but do not assume every entry is a plural; examples such as “architecturally” and “aerodynamically” end differently.

The main limitation is familiarity: just four entries are common by the frequency measure, despite 299 having definitions. Treat an obscure-looking word as a candidate, not a certainty, and check your game's word list once before using it. For a broader comparison, 15-letter words beginning with P number 695, well above A's 384.

Questions people ask

What is the highest-scoring 15-letter word starting with A?

“Apophthegmatize” has the highest score at 37 points. “Azidothymidines” is next at 34, followed by three words at 33: “axiomatizations,” “alexipharmakons,” and “apothegmatizing.” Check the exact spelling in your game's dictionary before playing the top scorer.

How many 15-letter A words end in S?

A total of 230 of these words end in S, making it the most frequent final letter by a wide margin. Y is next with 38 entries. That pattern points to many plural forms, though endings such as the “-ally” in “architecturally” show that not every entry follows it.

Are all 384 words accepted in every word game?

No, the 384-word total combines entries appearing in at least one tournament dictionary. Collins lists 364, NWL2023 lists 238, and ENABLE lists 221, so acceptance depends on the word list your game uses. The separate dictionary counts overlap and should not be added together.

Keep going

Related lists

14-letter words start with A

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