se vs som, What's the Difference?

Which to use

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

#16
“se” frequency rank: #1,134
“som” frequency rank: 1150
confusion score

Side-by-Side Comparison

Feature	se	som
Definition	indica hipótese	onda longitudinal transmitida pela matéria e que podemos ouvir (geralmente entre 20Hz e 20kHz):

Where the eye mixes se and som

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

2 ch

3 ch

som

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: se is /sɨ/ while som is /ˈsõ/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (conjunction vs noun), which is usually the fastest check. Our composite confusion score for this pair is 1150, derived from the frequency rank of both members and their visual similarity.

se is recorded at frequency rank #16, classified as aconj, pronounced /sɨ/. 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 1150, this pair ranks #74,461 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of se vs som

Shared letters: s. Private to "se": e. Private to "som": mo.

"se" · 2 letters · shape CV · "som" · 3 letters · shape CVC

Frequently Asked Questions

Can "se" and "som" be used interchangeably?

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

Which is more common, "se" or "som"?

"se" is the more common of the two: it sits at frequency rank #16 in our Portuguese list, against #1,134 for "som". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

You've compared "se" and "som". Here's where to go from here.

Full dictionary entry for "se" 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 #74,461 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"se" and "som" also get mixed up with nearby pairs, the highest-scored neighbour is "soap vs som". Nearby pair

PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.