coatedvscotterWhich spelling fits?

Quick tell: coated is a verb, cotter is a noun, so they fill different roles in a sentence.

Which to use

“coated” is a verb and “cotter” is a noun - they look or sound alike but fill different roles in a sentence.

#11,358
“coated” frequency rank
#37,401
“cotter” frequency rank
48759
confusion score

Side-by-Side Comparison

Feature coated cotter
Definition simple past and past participle of coat A pin or wedge inserted through a slot to hold machine parts together.

Where the eye mixes coated and cotter

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. coated (CVVCVC) and cotter (CVCCVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

6 ch
coated
6 ch
cotter

Visual trap between coated and cotter

These two trip readers on the page rather than in the ear: coated is /ˈkəʊtɪd/ while cotter is /kɒtə/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 48759, derived from the frequency rank of both members and their visual similarity.

coated is recorded at frequency rank #11,358, classified as averb, pronounced /ˈkəʊtɪd/. cotter is at rank #37,401, tagged as anoun, pronounced /kɒtə/.

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 48759, this pair ranks #190,022 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of coated vs cotter

Shared letters: ceot. Private to "coated": ad. Private to "cotter": r.

"coated" · 6 letters · shape CVVCVC  ·  "cotter" · 6 letters · shape CVCCVC

Known mistypes of this pair

  • coated ← caoted · ccoated · coaetd · coatde · coatedd · coatted · cotaed · ocated
  • cotter ← ccotter · coter · cotetr · cotterr · cottre · ctoter · octter

Frequently Asked Questions

Do "coated" and "cotter" mean the same thing in a sentence?
No - they are not even the same part of speech. "coated" is a verb and "cotter" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "coated" or "cotter"?
"coated" is the more common of the two: it sits at frequency rank #11,358 in our English list, against #37,401 for "cotter". 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 "coated" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cotter" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #190,022 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "coated" and "cotter" also get mixed up with nearby pairs, the highest-scored neighbour is "cotter vs cower". 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 #190,022 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