abovsatomWhich spelling fits?

Which to use

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

#38,261
“abo” frequency rank
#10,813
“atom” frequency rank
49074
confusion score

Side-by-Side Comparison

Feature abo atom
Definition An Aboriginal person. The smallest possible amount of matter which still retains its identity as a chemical element, now known to consist of a nucleus surrounded by electrons.

Where the eye mixes abo and atom

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

3 ch
abo
4 ch
atom

Visual trap between abo and atom

A purely visual mix-up. abo (/ˈæb.əʉ/) and atom (/ˈætəm/) 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 49074, derived from the frequency rank of both members and their visual similarity.

abo is recorded at frequency rank #38,261, classified as anoun, pronounced /ˈæb.əʉ/. atom is at rank #10,813, tagged as anoun, pronounced /ˈætəm/.

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 49074, this pair ranks #187,107 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of abo vs atom

Shared letters: ao. Private to "abo": b. Private to "atom": mt.

"abo" · 3 letters · shape VCV  ·  "atom" · 4 letters · shape VCVC

Known mistypes of this pair

  • atomaotm · atmo · atomm · attom · taom

Frequently Asked Questions

Can "abo" and "atom" be used interchangeably?
No. They are said differently (/ˈæb.əʉ/ versus /ˈætəm/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary English text, does "abo" or "atom" show up more?
"atom" is the more common of the two: it sits at frequency rank #10,813 in our English list, against #38,261 for "abo". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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 "abo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "atom" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #187,107 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "abo" and "atom" also get mixed up with nearby pairs, the highest-scored neighbour is "abo 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 #187,107 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