signovssinTell them apart

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

Which to use

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

#4,118
“signo” frequency rank
#41
“sin” frequency rank
4159
confusion score

Side-by-Side Comparison

Feature signo sin
Definition Señal, indicio. Indica la ausencia, carencia o falta de algo.

Where the eye mixes signo and sin

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
signo
3 ch
sin

Why the eye confuses signo with sin

These two trip readers on the page rather than in the ear: signo is [ˈsiɣ̞no] while sin is [sĩn]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (noun vs preposition), which is usually the fastest check. Our composite confusion score for this pair is 4159, derived from the frequency rank of both members and their visual similarity.

signo is recorded at frequency rank #4,118, classified as anoun, pronounced [ˈsiɣ̞no]. sin is at rank #41, tagged as aprep, pronounced [sĩn].

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 4159, this pair ranks #316,738 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

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

  • signocigno · 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 preposition, 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 #41 in our Spanish list, against #4,118 for "signo". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Eye-level mix-up between "signo" and "sin" is sorted above. Next: full entries or other pairs that share a letter shape.

  • 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 #316,738 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "signo" and "sin" also get mixed up with nearby pairs, the highest-scored neighbour is "sila vs sin". 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 #316,738 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list