bolstervsbowserWhich spelling fits?

Which to use

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

#19,274
“bolster” frequency rank
#27,753
“bowser” frequency rank
47027
confusion score

Side-by-Side Comparison

Feature bolster bowser
Definition A large cushion or pillow, usually cylindrical in shape. A fuel metering/delivery pump at a filling station.

Letter map: bolster vs bowser

Shared letters muted; letters that set bolster and bowser apart highlighted. Shared run: 5. bolster runs 7 letters (CVCCCVC) against bowser's 6 (CVCCVC) - the length gap alone is often enough to separate them once you know to check it.

7 ch
bolster
6 ch
bowser

Corpus notes: bolster and bowser

bolster and bowser 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 47027, 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/. bowser is at rank #27,753, 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 47027, this pair ranks #206,239 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of bolster vs bowser

Shared letters: beors. Private to "bolster": lt. Private to "bowser": w.

"bolster" · 7 letters · shape CVCCCVC  ·  "bowser" · 6 letters · shape CVCCVC

Known mistypes of this pair

  • bolster ← bbolster · bloster · bollster · bolsetr · bolsster · bolsterr · bolstre · bolstter
  • bowser ← bbowser · boswer · bowesr · bowserr · bowsre · bowsser · bowwser · bwoser

Frequently Asked Questions

Do "bolster" and "bowser" mean the same thing in a sentence?
No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "bolster" vs "bowser" - which ranks higher?
"bolster" is the more common of the two: it sits at frequency rank #19,274 in our English list, against #27,753 for "bowser". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "bolster" and "bowser".

  • Full dictionary entry for "bolster" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "bowser" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #206,239 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "bolster" and "bowser" also get mixed up with nearby pairs, the highest-scored neighbour is "boozer vs bowser". 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 #206,239 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