cem vs CPU, What's the Difference?

Which to use

“cem” is a num and “CPU” is a noun - they look or sound alike but fill different roles in a sentence.

#3,188
“cem” frequency rank: #21,128
“CPU” frequency rank: 24316
confusion score

Side-by-Side Comparison

Feature	cem	CPU
Definition	número equivalente a dez dezenas; cardinalidade de um conjunto que contenha uma centena de elementos distintos; representado pelo símbolo 100 (algarismos arábicos) ou C (algarismos romanos)	circuito interno de um computador que armazena, processa e controla a maior parte das operações

Letter map: cem vs CPU

Shared letters muted; letters that set cem and CPU apart highlighted. Shared run: 1.

3 ch

cem

3 ch

CPU

Grammar separator: cem vs CPU

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: cem is anum and CPUanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 24316, derived from the frequency rank of both members and their visual similarity.

cem is recorded at frequency rank #3,188, classified as anum, pronounced /ˈsɐ̃j̃/. CPU is at rank #21,128, 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 24316, this pair ranks #45,335 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of cem vs CPU

Shared letters: c. Private to "cem": em. Private to "CPU": pu.

"cem" · 3 letters · shape CVC · "CPU" · 3 letters · shape CCV

Frequently Asked Questions

Is swapping "cem" for "CPU" ever safe?

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

In ordinary Portuguese text, does "cem" or "CPU" show up more?

"cem" is the more common of the two: it sits at frequency rank #3,188 in our Portuguese list, against #21,128 for "CPU". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Done with this confusable. These links stay specific to "cem" and "CPU".

Full dictionary entry for "cem" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "CPU" - compare definitions side by side with the headword page. Word entry
This pair ranks #45,335 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"cem" and "CPU" also get mixed up with nearby pairs, the highest-scored neighbour is "chau vs CPU". Nearby pair

Confusion rank #45,335 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.