aminovsAmisWhich spelling fits?

Quick tell: amino is a adjective, Amis is a name, so they fill different roles in a sentence.

Which to use

“amino” is an adjective and “Amis” is a name - they look or sound alike but fill different roles in a sentence.

#10,806
“amino” frequency rank
#33,933
“Amis” frequency rank
44739
confusion score

Side-by-Side Comparison

Feature amino Amis
Definition Relating to an amine. A surname from Old French.

Where the eye mixes amino and Amis

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
amino
4 ch
Amis

Why the eye confuses amino with Amis

These two trip readers on the page rather than in the ear: amino is /əˈmiːnəʊ/ while Amis is /əˈmiː/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs name), which is usually the fastest check. Our composite confusion score for this pair is 44739, derived from the frequency rank of both members and their visual similarity.

amino is recorded at frequency rank #10,806, classified as anadj, pronounced /əˈmiːnəʊ/. Amis is at rank #33,933, tagged as aname, pronounced /əˈmiː/.

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 44739, this pair ranks #227,810 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of amino vs Amis

Shared letters: aim. Private to "amino": no. Private to "Amis": s.

"amino" · 5 letters · shape VCVCV  ·  "Amis" · 4 letters · shape VCVC

Known mistypes of this pair

  • aminoaimno · aminno · amion · ammino · amnio · maino
  • Amisammis · amsi

Frequently Asked Questions

Can "amino" and "Amis" be used interchangeably?
No - they are not even the same part of speech. "amino" is an adjective and "Amis" a name, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "amino" or "Amis" show up more?
"amino" is the more common of the two: it sits at frequency rank #10,806 in our English list, against #33,933 for "Amis". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Eye-level mix-up between "amino" and "Amis" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "amino" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Amis" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #227,810 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "amino" and "Amis" also get mixed up with nearby pairs, the highest-scored neighbour is "amb vs Amis". 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 #227,810 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