cmonvscommonConfusable pair

Quick tell: cmon is a contraction, common is an adjective, so they fill different roles in a sentence.

Which to use

“cmon” is a contraction and “common” is an adjective - they look or sound alike but fill different roles in a sentence.

#27,403
“cmon” frequency rank
#631
“common” frequency rank
28034
confusion score

Side-by-Side Comparison

Feature cmon common
Definition Alternative spelling of c'mon. Mutual; shared by more than one.

Letter map: cmon vs common

Shared letters muted; letters that set cmon and common apart highlighted. Shared run: 4.

4 ch
cmon
6 ch
common

Part-of-speech tell for cmon / common

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: cmon is acontraction and commonanadjective. On the page they differ by 2 letter(s) in length. Our composite confusion score for this pair is 28034, derived from the frequency rank of both members and their visual similarity.

cmon is recorded at frequency rank #27,403, classified as acontraction. common is at rank #631, tagged as anadj, pronounced /ˈkɒm.ən/.

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 28034, this pair ranks #374,241 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of cmon vs common

Shared letters: cmno. Private to "cmon": -. Private to "common": -.

"cmon" · 4 letters · shape CCVC  ·  "common" · 6 letters · shape CVCCVC

Known mistypes of this pair

  • cmonccmon · cmmon · cmno · cmonn · comn · mcon
  • commonccommon · cmomon · commno · commonn · comomn · comon · ocmmon

Frequently Asked Questions

Do "cmon" and "common" mean the same thing in a sentence?
No - they are not even the same part of speech. "cmon" is a contraction and "common" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "cmon" or "common" show up more?
"common" is the more common of the two: it sits at frequency rank #631 in our English list, against #27,403 for "cmon". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Pair "cmon" vs "common" is on the table, pick a follow-up below.

  • Full dictionary entry for "cmon" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "common" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #374,241 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "cmon" and "common" also get mixed up with nearby pairs, the highest-scored neighbour is "Clo vs cmon". 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 #374,241 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