acuityvsamityWhat's the difference?

Which to use

“acuity” and “amity” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#36,417
“acuity” frequency rank
#33,118
“amity” frequency rank
69535
confusion score

Side-by-Side Comparison

Feature acuity amity
Definition Sharpness or acuteness, as of a needle, wit, etc. Friendship; friendliness.

Where the eye mixes acuity and amity

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. acuity runs 6 letters (VCVVCV) against amity's 5 (VCVCV) - the length gap alone is often enough to separate them once you know to check it.

6 ch
acuity
5 ch
amity

Visual trap between acuity and amity

A purely visual mix-up. acuity (/əˈkjuːɪti/) and amity (/ˈæmɪti/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 69535, derived from the frequency rank of both members and their visual similarity.

acuity is recorded at frequency rank #36,417, classified as anoun, pronounced /əˈkjuːɪti/. amity is at rank #33,118, tagged as anoun, pronounced /ˈæmɪti/.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 69535, this pair ranks #54,153 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of acuity vs amity

Shared letters: aity. Private to "acuity": cu. Private to "amity": m.

"acuity" · 6 letters · shape VCVVCV  ·  "amity" · 5 letters · shape VCVCV

Known mistypes of this pair

  • acuity ← accuity · aciuty · acuitty · acuityy · acuiyt · acutiy · aucity · cauity
  • amity ← aimty · amitty · amityy · amiyt · ammity · amtiy · maity

Frequently Asked Questions

Is swapping "acuity" for "amity" ever safe?
No. They are said differently (/əˈkjuːɪti/ versus /ˈæmɪti/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary English text, does "acuity" or "amity" show up more?
"amity" is the more common of the two: it sits at frequency rank #33,118 in our English list, against #36,417 for "acuity". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "acuity" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "amity" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #54,153 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "acuity" and "amity" also get mixed up with nearby pairs, the highest-scored neighbour is "acquit vs acuity". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #54,153 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list