sinvssomTell them apart

Quick tell: sin is a pronoun, som is a noun, so they fill different roles in a sentence.

Which to use

“sin” is a pronoun and “som” is a noun - they look or sound alike but fill different roles in a sentence.

#8,687
“sin” frequency rank
#1,134
“som” frequency rank
9821
confusion score

Side-by-Side Comparison

Feature sin som
Definition aquilo, aquele onda longitudinal transmitida pela matéria e que podemos ouvir (geralmente entre 20Hz e 20kHz):

Letter map: sin vs som

Shared letters muted; letters that set sin and som apart highlighted. Shared run: 1.

3 ch
sin
3 ch
som

Grammar separator: sin vs som

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: sin is apronoun and somanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 9821, derived from the frequency rank of both members and their visual similarity.

sin is recorded at frequency rank #8,687, classified as apron. som is at rank #1,134, tagged as anoun, pronounced /ˈsõ/.

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 9821, this pair ranks #63,480 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of sin vs som

Shared letters: s. Private to "sin": in. Private to "som": mo.

"sin" · 3 letters · shape CVC  ·  "som" · 3 letters · shape CVC

Frequently Asked Questions

Do "sin" and "som" mean the same thing in a sentence?
No - they are not even the same part of speech. "sin" is a pronoun and "som" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "sin" vs "som" - which ranks higher?
"som" is the more common of the two: it sits at frequency rank #1,134 in our Portuguese list, against #8,687 for "sin". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Done with this confusable. These links stay specific to "sin" and "som".

  • Full dictionary entry for "sin" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "som" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #63,480 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "sin" and "som" also get mixed up with nearby pairs, the highest-scored neighbour is "Sau vs sin". Nearby pair

Confusion rank #63,480 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list