Which to use
“cis” is an adjective and “CMV” is a noun - they look or sound alike but fill different roles in a sentence.
- #13,115
- “cis” frequency rank
- #46,987
- “CMV” frequency rank
- 60102
- confusion score
Side-by-Side Comparison
| Feature | cis | CMV |
|---|---|---|
| Definition | Having two mutations on two genes on the same chromosome of a homologous pair. | Initialism of cytomegalovirus. |
Letter map: cis vs CMV
Shared letters muted; letters that set cis and CMV apart highlighted. Shared run: 1.
Part-of-speech tell for cis / CMV
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: cis is anadjective and CMVanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 60102, derived from the frequency rank of both members and their visual similarity.
cis is recorded at frequency rank #13,115, classified as anadj, pronounced /sɪs/. CMV is at rank #46,987, tagged as anoun.
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 60102, this pair ranks #102,186 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of cis vs CMV
Shared letters: c. Private to "cis": is. Private to "CMV": mv.
"cis" · 3 letters · shape CVC · "CMV" · 3 letters · shape CCC
Frequently Asked Questions
Can "cis" and "CMV" be used interchangeably?
Which is more common, "cis" or "CMV"?
Useful next steps
Pair "cis" vs "CMV" is on the table, pick a follow-up below.
- Full dictionary entry for "cis" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "CMV" - compare definitions side by side with the headword page. Word entry
- This pair ranks #102,186 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "cis" and "CMV" also get mixed up with nearby pairs, the highest-scored neighbour is "CGT vs CMV". Nearby pair
Confusion rank #102,186 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.