simavssuaTell them apart

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

Which to use

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

#25,451
“sima” frequency rank
#44,466
“sua” frequency rank
69917
confusion score

Side-by-Side Comparison

Feature sima sua
Definition Cavidad muy profunda que nace en la superficie terrestre. Forma del nominativo femenino singular de suus.

Where the eye mixes sima and sua

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
sima
3 ch
sua

Why the eye confuses sima with sua

These two trip readers on the page rather than in the ear: sima is [ˈsima] while sua is /ˈsʷa/. 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 (noun vs pronoun), which is usually the fastest check. Our composite confusion score for this pair is 69917, derived from the frequency rank of both members and their visual similarity.

sima is recorded at frequency rank #25,451, classified as anoun, pronounced [ˈsima]. sua is at rank #44,466, tagged as apron, pronounced /ˈsʷa/.

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 69917, this pair ranks #30,910 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of sima vs sua

Shared letters: as. Private to "sima": im. Private to "sua": u.

"sima" · 4 letters · shape CVCV  ·  "sua" · 3 letters · shape CVV

Known mistypes of this pair

  • simaisma · simma · smia · ssima

Frequently Asked Questions

Can "sima" and "sua" be used interchangeably?
No - they are not even the same part of speech. "sima" is a noun and "sua" a pronoun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "sima" or "sua"?
"sima" is the more common of the two: it sits at frequency rank #25,451 in our Spanish list, against #44,466 for "sua". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "sima" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sua" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #30,910 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "sima" and "sua" also get mixed up with nearby pairs, the highest-scored neighbour is "sila vs sua". 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 #30,910 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