ambvsaoWhich spelling fits?

Quick tell: amb is a preposition, ao is a contraction, so they fill different roles in a sentence.

Which to use

“amb” is a preposition and “ao” is a contraction - they look or sound alike but fill different roles in a sentence.

#29,477
“amb” frequency rank
#21,556
“ao” frequency rank
51033
confusion score

Side-by-Side Comparison

Feature amb ao
Definition Con, en colaboración con, en compañía de o junto con. Contracción de la preposición a ("a") y el artículo o ("el"): (al).

Where the eye mixes amb and ao

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

3 ch
amb
2 ch
ao

Look-alike desk: amb vs ao

These two trip readers on the page rather than in the ear: amb is [am] while ao is [ɔ]. 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 contraction), which is usually the fastest check. Our composite confusion score for this pair is 51033, derived from the frequency rank of both members and their visual similarity.

amb is recorded at frequency rank #29,477, classified as aprep, pronounced [am]. ao is at rank #21,556, tagged as acontraction, pronounced [ɔ].

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 51033, this pair ranks #100,042 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of amb vs ao

Shared letters: a. Private to "amb": bm. Private to "ao": o.

"amb" · 3 letters · shape VCC  ·  "ao" · 2 letters · shape VV

Frequently Asked Questions

Is swapping "amb" for "ao" ever safe?
No - they are not even the same part of speech. "amb" is a preposition and "ao" a contraction, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "amb" vs "ao" - which ranks higher?
"ao" is the more common of the two: it sits at frequency rank #21,556 in our Spanish list, against #29,477 for "amb". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "amb" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ao" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #100,042 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "amb" and "ao" also get mixed up with nearby pairs, the highest-scored neighbour is "amb vs atl". Nearby pair

Confusion rank #100,042 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