acervsaugerTell them apart

Which to use

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

#24,367
“acer” frequency rank
#38,293
“auger” frequency rank
62660
confusion score

Side-by-Side Comparison

Feature acer auger
Definition A plant of the genus Acer; a maple. A carpenter's tool for boring holes longer than those bored by a gimlet.

Where the eye mixes acer and auger

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. acer runs 4 letters (VCVC) against auger's 5 (VVCVC) - the length gap alone is often enough to separate them once you know to check it.

4 ch
acer
5 ch
auger

Visual trap between acer and auger

A purely visual mix-up. acer (/ˈeɪsə/) and auger (/ˈɔː.ɡə(ɹ)/) 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 62660, 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/. auger is at rank #38,293, tagged as anoun, pronounced /ˈɔː.ɡə(ɹ)/.

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 62660, this pair ranks #87,233 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of acer vs auger

Shared letters: aer. Private to "acer": c. Private to "auger": gu.

"acer" · 4 letters · shape VCVC  ·  "auger" · 5 letters · shape VVCVC

Known mistypes of this pair

  • acer ← accer · acerr · aecr
  • auger ← aguer · auegr · augerr · augger · augre · uager

Frequently Asked Questions

Can "acer" and "auger" be used interchangeably?
No. They are said differently (/ˈeɪsə/ versus /ˈɔː.ɡə(ɹ)/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "acer" or "auger"?
"acer" is the more common of the two: it sits at frequency rank #24,367 in our English list, against #38,293 for "auger". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "acer" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "auger" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #87,233 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "acer" and "auger" also get mixed up with nearby pairs, the highest-scored neighbour is "Alger vs auger". 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 #87,233 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