Which to use
“aboard” is an adverb and “abort” is a noun - they look or sound alike but fill different roles in a sentence.
- #5,653
- “aboard” frequency rank
- #20,277
- “abort” frequency rank
- 25930
- confusion score
Side-by-Side Comparison
| Feature | aboard | abort |
|---|---|---|
| Definition | On board; into or within a ship or boat; hence, into or within a railway car. | An early termination of a mission, action, or procedure in relation to missiles or spacecraft; the craft making such a mission. |
Where the eye mixes aboard and abort
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Visual trap between aboard and abort
These two trip readers on the page rather than in the ear: aboard is /əˈbɔːd/ while abort is /əˈbɔːt/. 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 25930, derived from the frequency rank of both members and their visual similarity.
aboard is recorded at frequency rank #5,653, classified as anadv, pronounced /əˈbɔːd/. abort is at rank #20,277, tagged as anoun, pronounced /əˈbɔːt/.
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 25930, this pair ranks #390,552 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of aboard vs abort
Shared letters: abor. Private to "aboard": d. Private to "abort": t.
"aboard" · 6 letters · shape VCVVCC · "abort" · 5 letters · shape VCVCC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "aboard" for "abort" ever safe?
In ordinary English text, does "aboard" or "abort" show up more?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "aboard" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "abort" - compare definitions side by side with the headword page. Word entry
- This pair ranks #390,552 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "aboard" and "abort" also get mixed up with nearby pairs, the highest-scored neighbour is "abort vs Arora". 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 #390,552 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.