oirávsosaTell them apart

Quick tell: oirá is a verb, osa is a noun, so they fill different roles in a sentence.

Which to use

“oirá” is a verb and “osa” is a noun - they look or sound alike but fill different roles in a sentence.

#49,173
“oirá” frequency rank
#22,441
“osa” frequency rank
71614
confusion score

Side-by-Side Comparison

Feature oirá osa
Definition Tercera persona del singular (él, ella, ello; usted, 2.ª persona) del futuro de indicativo de oír. Forma del femenino singular de oso.

Where the eye mixes oirá and osa

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. oirá runs 4 letters (VVCV) against osa's 3 (VCV) - the length gap alone is often enough to separate them once you know to check it.

4 ch
oirá
3 ch
osa

Visual trap between oirá and osa

These two trip readers on the page rather than in the ear: oirá is [ojˈɾa] while osa is [ˈosa]. 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 (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 71614, derived from the frequency rank of both members and their visual similarity.

oirá is recorded at frequency rank #49,173, classified as averb, pronounced [ojˈɾa]. osa is at rank #22,441, tagged as anoun, pronounced [ˈosa].

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 71614, this pair ranks #27,107 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of oirá vs osa

Shared letters: o. Private to "oirá": irá. Private to "osa": as.

"oirá" · 4 letters · shape VVCV  ·  "osa" · 3 letters · shape VCV

Frequently Asked Questions

Is swapping "oirá" for "osa" ever safe?
No - they are not even the same part of speech. "oirá" is a verb and "osa" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "oirá" or "osa" show up more?
"osa" is the more common of the two: it sits at frequency rank #22,441 in our Spanish list, against #49,173 for "oirá". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "oirá" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "osa" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #27,107 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "oirá" and "osa" also get mixed up with nearby pairs, the highest-scored neighbour is "oían vs oirá". Nearby pair

Confusion rank #27,107 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