AAA

noun

By · According to Wiktionary data (CC BY-SA) ·

"aaa" is a 3-letter English headword indexed on PlainSpell.

The verdict

“AAA” sits in 20 confusable pairs (corpus #9,990) as a noun. The look-alike neighbours are the real trap.

#9,990
frequency rank, English
3,931
“A” headwords
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 2, 2026) - Initialism of abdominal aortic aneurysm.

Corpus desk

Index EN-aaa · AAA · English

AAA · rank #9,990 · 0 variants · 20 confusables

  • FREQ-COMMON #9,990
  • LEN-MID 3 letters
  • VOW-3 3 vowels
  • CONFUS-HIGH 20 pairs
  • VAR-0 0 variants
  • BOOK-MID 3,931
  • PHOTO-FINISH Wyoming

Nearest frequency peer: Wyoming (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Frequency neighbourhood for “AAA”

Lower corpus rank = more everyday usage (inverted bar length for readability)

corpus weight

What this shows Bars show where “AAA” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.

Source FrequencyWords open word-frequency list As of September 2, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

AAA vs as
0% similar
AAA vs at
0% similar
AAA vs an
0% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for AAA
PropertyValue
HeadwordAAA
LanguageEnglish
Part of speechNoun
Letters3
Frequency rank#9,990
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “AAA” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). AAA lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Easy to mix with look-alikes

The spelling risk for AAA is neighbouring look-alikes ("as", "at", …), not just typos; it is anoun. Frequency #9,990 among 3,931 “A” headwords. 27 recorded senses keep meaning in play.

AAA has no tracked misspelling variants, a straightforward case of a spelling with little room for common typos. It also participates in 20 confusable-pair relationships, "as", "at", "an", and more, where similar look or sound leads writers to substitute one word for another in context.

No borrowing history is documented for this entry, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct English form is AAA, spelled A-A-A.

Definition

  1. 1
    Initialism of abdominal aortic aneurysm.
  2. 2
    Initialism of aromatic amino acid.
  3. 3
    Initialism of anti-aircraft artillery.
  4. 4
    Initialism of animal-assisted activity.
  5. 5
    Initialism of adult album alternative.
  6. 6
    Initialism of advanced acoustic array.
  7. 7
    Initialism of Access Approval Authority.
  8. 8
    Initialism of accumulated adjustments account, in US Federal Income Tax.
  9. 9
    Initialism of adaptive array antenna.
  10. 10
    Initialism of airborne assault area.
  11. 11
    Initialism of aircraft alert area.
  12. 12
    Initialism of airport airspace analysis.
  13. 13
    Initialism of angle angle angle, a geometric proof.
  14. 14
    Initialism of arrival and assembly area.
  15. 15
    Initialism of astronaut-actuated abort.
  16. 16
    Initialism of attitude, awareness and accountability, a ski safety program.
  17. 17
    Initialism of authentication, authorization and accounting.
  18. 18
    Initialism of automated airlift analysis.
  19. 19
    Initialism of administration, authorization, and authentication, in software security.
  20. 20
    Initialism of AEGIS acquisition agent.
  21. 21
    Initialism of aerospace engineering, applied mechanics, and aviation.
  22. 22
    Initialism of air avenue of approach.
  23. 23
    Initialism of airborne array aperture.
  24. 24
    Initialism of allocations, assessments, and analysis.
  25. 25
    Initialism of alternate assembly area.
  26. 26
    Initialism of authorization accounting activity; authorized accounting activity.
  27. 27
    Initialism of Acquisition Approval Authority.

Recorded use

Wiktionary example

These source excerpts show how AAA appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Additionally, the IT staff must implement an authentication, authorization, and accounting (AAA) server. The AAA server (commonly pronounced "tripple A" server) will keep the usernames and passwords, and when the user supplies that information, it is the AAA server that determines if what the user typed was correct or not.

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of September 2, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.

Frequently Asked Questions

How do you spell "AAA"?
"AAA" is spelled A-A-A.
What does "AAA" mean?
As a noun, "AAA" means: Initialism of abdominal aortic aneurysm.
What words are commonly confused with "AAA"?
"AAA" is commonly confused with "as", "at", "an". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What language does "AAA" come from?
"AAA" is a English word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "AAA", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 3 letters (nearest by frequency rank).

quo#9,947kai#10,070dom#9,877Rey#9,813
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list