Which to use
“cem” is a num and “CSA” is an abbrev - they look or sound alike but fill different roles in a sentence.
- #3,188
- “cem” frequency rank
- #21,705
- “CSA” frequency rank
- 24893
- confusion score
Side-by-Side Comparison
| Feature | cem | CSA |
|---|---|---|
| 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) | sigla de Canadian Space Agency, a Agência Espacial Canadense |
Where the spellings diverge
Shared letters are muted; the letters that actually set cem and CSA apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
cem and CSA form a confusable pair in the Portuguese index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They share most of their letters but differ in 2 positions - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 24893, 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/. CSA is at rank #21,705, tagged as anabbrev.
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 24893, this pair ranks #44,564 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Frequency comparison
Frequently Asked Questions
Can "cem" and "CSA" be used interchangeably?
Remembering cem vs CSA
The fastest way to pick the right one every time.
- Check the role first: if you need a num, it's “cem”; for an abbrev, it's “CSA”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “cem” entry
- Browse more pairs most likely to be confused. Most confusable