Which to use
“bolster” and “buster” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #19,274
- “bolster” frequency rank
- #15,581
- “buster” frequency rank
- 34855
- confusion score
Side-by-Side Comparison
| Feature | bolster | buster |
|---|---|---|
| Definition | A large cushion or pillow, usually cylindrical in shape. | Someone who or something that bursts, breaks, or destroys a specified thing. |
Letter map: bolster vs buster
Shared letters muted; letters that set bolster and buster apart highlighted. Shared run: 5. bolster runs 7 letters (CVCCCVC) against buster's 6 (CVCCVC) - the length gap alone is often enough to separate them once you know to check it.
Corpus notes: bolster and buster
bolster and buster are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 34855, derived from the frequency rank of both members and their visual similarity.
bolster is recorded at frequency rank #19,274, classified as anoun, pronounced /ˈbɒlstə/. buster is at rank #15,581, tagged as anoun.
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 34855, this pair ranks #317,048 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of bolster vs buster
Shared letters: berst. Private to "bolster": lo. Private to "buster": u.
"bolster" · 7 letters · shape CVCCCVC · "buster" · 6 letters · shape CVCCVC
Known mistypes of this pair
Frequently Asked Questions
Do "bolster" and "buster" mean the same thing in a sentence?
Which is more common, "bolster" or "buster"?
Useful next steps
Done with this confusable. These links stay specific to "bolster" and "buster".
- Full dictionary entry for "bolster" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "buster" - compare definitions side by side with the headword page. Word entry
- This pair ranks #317,048 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "bolster" and "buster" also get mixed up with nearby pairs, the highest-scored neighbour is "bluster vs bolster". 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 #317,048 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.