Which to use
“blister” and “bolster” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #28,840
- “blister” frequency rank
- #19,274
- “bolster” frequency rank
- 48114
- confusion score
Side-by-Side Comparison
| Feature | blister | bolster |
|---|---|---|
| Definition | A small bubble between the layers of the skin that contains watery or bloody fluid and is caused by friction and pressure, burning, freezing, chemical irritation, disease, or infection. | A large cushion or pillow, usually cylindrical in shape. |
Where the eye mixes blister and bolster
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. blister (CCVCCVC) and bolster (CVCCCVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Visual trap between blister and bolster
A purely visual mix-up. blister (/ˈblɪstə(ɹ)/) and bolster (/ˈbɒlstə/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 48114, derived from the frequency rank of both members and their visual similarity.
blister is recorded at frequency rank #28,840, classified as anoun, pronounced /ˈblɪstə(ɹ)/. bolster is at rank #19,274, tagged as anoun, pronounced /ˈbɒlstə/.
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 48114, this pair ranks #196,152 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of blister vs bolster
Shared letters: belrst. Private to "blister": i. Private to "bolster": o.
"blister" · 7 letters · shape CCVCCVC · "bolster" · 7 letters · shape CVCCCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "blister" for "bolster" ever safe?
Frequency check: "blister" vs "bolster" - which ranks higher?
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 "blister" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "bolster" - compare definitions side by side with the headword page. Word entry
- This pair ranks #196,152 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "blister" and "bolster" also get mixed up with nearby pairs, the highest-scored neighbour is "blister vs blitzer". 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 #196,152 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.