C vs com, What's the Difference?

Which to use

“C” is a noun and “com” is a preposition - they look or sound alike but fill different roles in a sentence.

#372
“C” frequency rank: #14
“com” frequency rank: 386
confusion score

Side-by-Side Comparison

Feature	C	com
Definition	linguagem de programação de alto nível para computadores, voltada para o desenvolvimento de sistemas e aplicativos	indica várias relações: companhia, causa, instrumento, ligação, modo, oposição

Letter map: C vs com

Shared letters muted; letters that set C and com apart highlighted. Shared run: 1.

1 ch

3 ch

com

Grammar separator: C vs com

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: C is anoun and comapreposition. On the page they differ by 2 extra letter(s) - “C” sits inside “com”. Our composite confusion score for this pair is 386, derived from the frequency rank of both members and their visual similarity.

C is recorded at frequency rank #372, classified as anoun. com is at rank #14, tagged as aprep, pronounced /kõ/.

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 386, this pair ranks #75,253 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of C vs com

Shared letters: c. Private to "C": -. Private to "com": mo.

"C" · 1 letters · shape C · "com" · 3 letters · shape CVC

Frequently Asked Questions

Can "C" and "com" be used interchangeably?

No - they are not even the same part of speech. "C" is a noun and "com" a preposition, so a sentence built for one is usually ungrammatical with the other.

In ordinary Portuguese text, does "C" or "com" show up more?

"com" is the more common of the two: it sits at frequency rank #14 in our Portuguese list, against #372 for "C". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Pair "C" vs "com" is on the table, pick a follow-up below.

Full dictionary entry for "C" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "com" - compare definitions side by side with the headword page. Word entry
This pair ranks #75,253 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"C" and "com" also get mixed up with nearby pairs, the highest-scored neighbour is "cham vs com". Nearby pair

Confusion rank #75,253 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.