auxvsohTell them apart

Quick tell: aux is a contraction, oh is an intj, so they fill different roles in a sentence.

Which to use

“aux” is a contraction and “oh” is an intj - they look or sound alike but fill different roles in a sentence.

#32,511
“aux” frequency rank
#1,689
“oh” frequency rank
34200
confusion score

Side-by-Side Comparison

Feature aux oh
Definition Contracción de la preposición à y el artículo les; a las ; a los. Interjección que se usa para para manifestar muchos y muy diversos movimientos del ánimo, y más ordinariamente asombro, pena o alegría.

Same sound, different letters: aux vs oh

Muted letters are shared; highlighted letters are the only spelling cue when pronunciation matches. No shared letter run - the mix-up is pure homophony.

3 ch
aux
2 ch
oh

Same sound, different spelling - aux / oh

Say them out loud and nothing separates them: aux and oh carry the same recorded pronunciation, /o/. Grammar is what tells them apart: one is acontraction, the other anintj, so most sentences will only accept one of them. They differ by 1 letter(s) in length. Our composite confusion score for this pair is 34200, derived from the frequency rank of both members and their visual similarity.

aux is recorded at frequency rank #32,511, classified as acontraction, pronounced /o/. oh is at rank #1,689, tagged as anintj, pronounced [ˈo].

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 34200, this pair ranks #192,709 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of aux vs oh

Shared letters: none. Private to "aux": aux. Private to "oh": ho.

"aux" · 3 letters · shape VVC  ·  "oh" · 2 letters · shape VC

Frequently Asked Questions

Can "aux" and "oh" be used interchangeably?
No - they are not even the same part of speech. "aux" is a contraction and "oh" an intj, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "aux" vs "oh" - which ranks higher?
"oh" is the more common of the two: it sits at frequency rank #1,689 in our Spanish list, against #32,511 for "aux". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

You've separated the homophone pair "aux" / "oh". Follow the links when you need the full entry or a neighbour that trips the same ear.

  • Full dictionary entry for "aux" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "oh" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #192,709 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "aux" and "oh" also get mixed up with nearby pairs, the highest-scored neighbour is "atl vs aux". Nearby pair

Confusion rank #192,709 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