sobvssósWhich spelling fits?

Quick tell: sob is a preposition, sós is an adjective, so they fill different roles in a sentence.

Which to use

“sob” is a preposition and “sós” is an adjective - they look or sound alike but fill different roles in a sentence.

#320
“sob” frequency rank
#16,887
“sós” frequency rank
17207
confusion score

Side-by-Side Comparison

Feature sob sós
Definition abaixo, em baixo plural de só

Letter map: sob vs sós

Shared letters muted; letters that set sob and sós apart highlighted. Shared run: 1.

3 ch
sob
3 ch
sós

Grammar separator: sob vs sós

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: sob is apreposition and sósanadjective. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 17207, derived from the frequency rank of both members and their visual similarity.

sob is recorded at frequency rank #320, classified as aprep, pronounced /ˈsob/. sós is at rank #16,887, tagged as anadj.

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 17207, this pair ranks #54,106 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of sob vs sós

Shared letters: s. Private to "sob": bo. Private to "sós": ó.

"sob" · 3 letters · shape CVC  ·  "sós" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "sob" for "sós" ever safe?
No - they are not even the same part of speech. "sob" is a preposition and "sós" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "sob" or "sós"?
"sob" is the more common of the two: it sits at frequency rank #320 in our Portuguese list, against #16,887 for "sós". 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 "sob" and "sós". Here's where to go from here.

  • Full dictionary entry for "sob" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sós" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #54,106 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "sob" and "sós" also get mixed up with nearby pairs, the highest-scored neighbour is "soap vs sós". Nearby pair

Confusion rank #54,106 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