CMV vs cob, What's the Difference?

Which to use

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

#46,987
“CMV” frequency rank: #27,404
“cob” frequency rank: 74391
confusion score

Side-by-Side Comparison

Feature	CMV	cob
Definition	Initialism of cytomegalovirus.	A corncob.

Letter map: CMV vs cob

Shared letters muted; letters that set CMV and cob apart highlighted. Shared run: 1. CMV (CCC) and cob (CVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch

CMV

3 ch

cob

Spelling & dictionary notes on CMV vs cob

CMV and cob are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 74391, derived from the frequency rank of both members and their visual similarity.

CMV is recorded at frequency rank #46,987, classified as anoun. cob is at rank #27,404, tagged as anoun, pronounced /kɑb/.

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 74391, this pair ranks #36,496 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of CMV vs cob

Shared letters: c. Private to "CMV": mv. Private to "cob": bo.

"CMV" · 3 letters · shape CCC · "cob" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "CMV" for "cob" ever safe?

No. They share most of their letters but differ in 2 positions, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.

Which is more common, "CMV" or "cob"?

"cob" is the more common of the two: it sits at frequency rank #27,404 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

Done with this confusable. These links stay specific to "CMV" and "cob".

Full dictionary entry for "CMV" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "cob" - compare definitions side by side with the headword page. Word entry
This pair ranks #36,496 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"CMV" and "cob" also get mixed up with nearby pairs, the highest-scored neighbour is "CGT vs CMV". Nearby pair

Confusion rank #36,496 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.