signovssinTell them apart

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

Which to use

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

#10,792
“signo” frequency rank
#8,687
“sin” frequency rank
19479
confusion score

Side-by-Side Comparison

Feature signo sin
Definition sinal, marca aquilo, aquele

Letter map: signo vs sin

Shared letters muted; letters that set signo and sin apart highlighted. Shared run: 3. signo runs 5 letters (CVCCV) against sin's 3 (CVC) - the length gap alone is often enough to separate them once you know to check it.

5 ch
signo
3 ch
sin

Role in the sentence - signo and sin

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: signo is anoun and sinapronoun. On the page they differ by 2 letter(s) in length. Our composite confusion score for this pair is 19479, derived from the frequency rank of both members and their visual similarity.

signo is recorded at frequency rank #10,792, classified as anoun, pronounced /ˈsi.ɡnu/. sin is at rank #8,687, tagged as apron.

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 19479, this pair ranks #51,220 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of signo vs sin

Shared letters: ins. Private to "signo": go. Private to "sin": -.

"signo" · 5 letters · shape CVCCV  ·  "sin" · 3 letters · shape CVC

Known mistypes of this pair

  • signo ← isgno · sgino · siggno · signno · sigon · singo · ssigno

Frequently Asked Questions

Do "signo" and "sin" mean the same thing in a sentence?
No - they are not even the same part of speech. "signo" is a noun and "sin" a pronoun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "signo" or "sin"?
"sin" is the more common of the two: it sits at frequency rank #8,687 in our Portuguese list, against #10,792 for "signo". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

You've compared "signo" and "sin". Here's where to go from here.

  • Full dictionary entry for "signo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sin" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #51,220 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "signo" and "sin" also get mixed up with nearby pairs, the highest-scored neighbour is "signo vs sueño". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #51,220 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