CMVvscoyWhich spelling fits?

Quick tell: CMV is a noun, coy is an adjective, so they fill different roles in a sentence.

Which to use

“CMV” is a noun and “coy” is an adjective - they look or sound alike but fill different roles in a sentence.

#46,987
“CMV” frequency rank
#25,336
“coy” frequency rank
72323
confusion score

Side-by-Side Comparison

Feature CMV coy
Definition Initialism of cytomegalovirus. Bashful, shy, retiring.

Letter map: CMV vs coy

Shared letters muted; letters that set CMV and coy apart highlighted. Shared run: 1.

3 ch
CMV
3 ch
coy

Role in the sentence - CMV and coy

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: CMV is anoun and coyanadjective. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 72323, derived from the frequency rank of both members and their visual similarity.

CMV is recorded at frequency rank #46,987, classified as anoun. coy is at rank #25,336, tagged as anadj, pronounced /kɔɪ/.

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 72323, this pair ranks #43,438 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of CMV vs coy

Shared letters: c. Private to "CMV": mv. Private to "coy": oy.

"CMV" · 3 letters · shape CCC  ·  "coy" · 3 letters · shape CVV

Frequently Asked Questions

Do "CMV" and "coy" mean the same thing in a sentence?
No - they are not even the same part of speech. "CMV" is a noun and "coy" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "CMV" or "coy" show up more?
"coy" is the more common of the two: it sits at frequency rank #25,336 in our English list, against #46,987 for "CMV". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "CMV" vs "coy" is on the table, pick a follow-up below.

  • Full dictionary entry for "CMV" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "coy" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #43,438 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "CMV" and "coy" also get mixed up with nearby pairs, the highest-scored neighbour is "CGT vs CMV". Nearby pair

Confusion rank #43,438 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