acervsaesWhat's the difference?

Which to use

“acer” and “aes” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#24,367
“acer” frequency rank
#28,806
“aes” frequency rank
53173
confusion score

Side-by-Side Comparison

Feature acer aes
Definition A plant of the genus Acer; a maple. plural of a, the name of the letter A.

Where the eye mixes acer and aes

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
acer
3 ch
aes

Look-alike desk: acer vs aes

A purely visual mix-up. acer (/ˈeɪsə/) and aes (/ˈeɪz/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 53173, derived from the frequency rank of both members and their visual similarity.

acer is recorded at frequency rank #24,367, classified as anoun, pronounced /ˈeɪsə/. aes is at rank #28,806, tagged as anoun, pronounced /ˈeɪz/.

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 53173, this pair ranks #151,175 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of acer vs aes

Shared letters: ae. Private to "acer": cr. Private to "aes": s.

"acer" · 4 letters · shape VCVC  ·  "aes" · 3 letters · shape VVC

Known mistypes of this pair

  • aceraccer · acerr · aecr

Frequently Asked Questions

Is swapping "acer" for "aes" ever safe?
No. They are said differently (/ˈeɪsə/ versus /ˈeɪz/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "acer" vs "aes" - which ranks higher?
"acer" is the more common of the two: it sits at frequency rank #24,367 in our English list, against #28,806 for "aes". 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 "acer" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "aes" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #151,175 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "acer" and "aes" also get mixed up with nearby pairs, the highest-scored neighbour is "aes vs amb". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #151,175 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list