aevsañoWhat's the difference?

Quick tell: ae is a adverb, año is a noun, so they fill different roles in a sentence.

Which to use

“ae” is an adverb and “año” is a noun - they look or sound alike but fill different roles in a sentence.

#20,556
“ae” frequency rank
#100
“año” frequency rank
20656
confusion score

Side-by-Side Comparison

Feature ae año
Definition Por causa de. Intervalo de tiempo que tarda la Tierra en hacer una revolución alrededor del Sol. El año se compone de 365 días y cuarto aproximadamente. Por eso cada cuatro años el año civil tiene un día más.

Where the eye mixes ae and año

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

2 ch
ae
3 ch
año

Why the eye confuses ae with año

These two trip readers on the page rather than in the ear: ae is /aˈe/ while año is [ˈaɲo]. 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 (adverb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 20656, derived from the frequency rank of both members and their visual similarity.

ae is recorded at frequency rank #20,556, classified as anadv, pronounced /aˈe/. año is at rank #100, tagged as anoun, pronounced [ˈaɲo].

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 20656, this pair ranks #258,381 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of ae vs año

Shared letters: a. Private to "ae": e. Private to "año": .

"ae" · 2 letters · shape VV  ·  "año" · 3 letters · shape VCV

Frequently Asked Questions

Is swapping "ae" for "año" ever safe?
No - they are not even the same part of speech. "ae" is an adverb and "año" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "ae" or "año" show up more?
"año" is the more common of the two: it sits at frequency rank #100 in our Spanish list, against #20,556 for "ae". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

  • Full dictionary entry for "ae" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "año" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #258,381 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "ae" and "año" also get mixed up with nearby pairs, the highest-scored neighbour is "abed vs ae". Nearby pair

Confusion rank #258,381 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