aii

contraction

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

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

The verdict

“aii” is uncommon English (frequency #54,604 among 3,931 “A” headwords), classed as a contraction. The kind of spelling people second-guess.

#54,604
frequency rank, English
3,931
“A” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Alternative form of ai.

Corpus desk

Index EN-aii · aii · English

aii · rank #54,604 · 0 variants · 0 confusables

  • FREQ-RARE #54,604
  • LEN-MID 3 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 3,931
  • PHOTO-FINISH alleyways

Nearest frequency peer: alleyways (+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.

Long-tail ranks near “aii”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “aii” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for aii
PropertyValue
Headwordaii
LanguageEnglish
Part of speechContraction
Letters3
Frequency rank#54,604
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “aii” in English

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

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

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “alleyways” (#54,605), “Afrikaner” (#54,602), “Alloa” (#54,606). Among 3,931 “A” headwords, “aii” is #54,604. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

aii is uncommon English at frequency #54,604 among 3,931 “A” headwords, classed as acontraction. Rarity is why readers land here mid-draft. Gloss: "Alternative form of ai.".

aii has no tracked misspelling variants, which points to an orthography that plays by predictable English rules. Our confusable-pair dataset has no match for it, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: See the etymology of the corresponding lemma form. The correct English form is aii, spelled A-I-I.

Definition

  1. 1
    Alternative form of ai.

Etymology

See the etymology of the corresponding lemma form.

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.

Frequently Asked Questions

How do you spell "aii"?
"aii" is spelled A-I-I.
What does "aii" mean?
As a contraction, "aii" means: Alternative form of ai.
What is the origin of the word "aii"?
See the etymology of the corresponding lemma form. See the full etymology section above for more details.
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 "aii", not the corpus desk frequency band.

Same letter count

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

ACU#54,595TSB#54,543tew#54,530CLR#54,696

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

Source: FrequencyWords open word-frequency list