Which to use
“sigma” and “signo” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #36,291
- “sigma” frequency rank
- #4,118
- “signo” frequency rank
- 40409
- confusion score
Side-by-Side Comparison
| Feature | sigma | signo |
|---|---|---|
| Definition | Parte del intestino grueso que, en el hombre, continúa después del colon descendente, a la altura de la pelvis y es seguido por el recto. En esta parte los gases se acumulan para ser luego expulsados sin interferir con las heces. | Señal, indicio. |
Where the eye mixes sigma and signo
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. sigma and signo follow the identical consonant-vowel pattern (CVCCV). Same shape at a glance is often the real trap, independent of shared letters.
Visual trap between sigma and signo
A purely visual mix-up. sigma ([ˈsiɣ̞ma]) and signo ([ˈsiɣ̞no]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 40409, derived from the frequency rank of both members and their visual similarity.
sigma is recorded at frequency rank #36,291, classified as anoun, pronounced [ˈsiɣ̞ma]. signo is at rank #4,118, tagged as anoun, pronounced [ˈsiɣ̞no].
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 40409, this pair ranks #159,240 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of sigma vs signo
Shared letters: gis. Private to "sigma": am. Private to "signo": no.
"sigma" · 5 letters · shape CVCCV · "signo" · 5 letters · shape CVCCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "sigma" for "signo" ever safe?
Frequency check: "sigma" vs "signo" - which ranks higher?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "sigma" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "signo" - compare definitions side by side with the headword page. Word entry
- This pair ranks #159,240 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "sigma" and "signo" also get mixed up with nearby pairs, the highest-scored neighbour is "sigma vs sila". 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 #159,240 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.