ortvsosWhich spelling fits?

Quick tell: ort is a preposition, os is a pronoun, so they fill different roles in a sentence.

Which to use

“ort” is a preposition and “os” is a pronoun - they look or sound alike but fill different roles in a sentence.

#43,156
“ort” frequency rank
#449
“os” frequency rank
43605
confusion score

Side-by-Side Comparison

Feature ort os
Definition Forma combinada de la preposición ar y el pronombre personal de segunda persona singular. Caso acusativo y dativo del pronombre personal vosotros, una de las formas de la segunda persona del plural en español.

Where the eye mixes ort and os

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
ort
2 ch
os

Visual trap between ort and os

These two trip readers on the page rather than in the ear: ort is [ɔɾˠt̪ˠ] while os is [os]. 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 (preposition vs pronoun), which is usually the fastest check. Our composite confusion score for this pair is 43605, derived from the frequency rank of both members and their visual similarity.

ort is recorded at frequency rank #43,156, classified as aprep, pronounced [ɔɾˠt̪ˠ]. os is at rank #449, tagged as apron, pronounced [os].

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 43605, this pair ranks #141,760 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ort vs os

Shared letters: o. Private to "ort": rt. Private to "os": s.

"ort" · 3 letters · shape VCC  ·  "os" · 2 letters · shape VC

Frequently Asked Questions

Do "ort" and "os" mean the same thing in a sentence?
No - they are not even the same part of speech. "ort" is a preposition and "os" a pronoun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "ort" or "os" show up more?
"os" is the more common of the two: it sits at frequency rank #449 in our Spanish list, against #43,156 for "ort". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

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

  • Full dictionary entry for "ort" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "os" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #141,760 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "ort" and "os" also get mixed up with nearby pairs, the highest-scored neighbour is "oirá vs ort". Nearby pair

Confusion rank #141,760 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