Which to use
“bolt” and “boost” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #6,659
- “bolt” frequency rank
- #3,545
- “boost” frequency rank
- 10204
- confusion score
Side-by-Side Comparison
| Feature | bolt | boost |
|---|---|---|
| Definition | A (usually) metal fastener consisting of a cylindrical body that is threaded, with a larger head on one end. It can be inserted into an unthreaded hole up to the head, with a nut then threaded on the other end; a heavy machine screw. | A push from behind or below, as to one who is endeavoring to climb. |
Where the spellings diverge
Shared letters are muted; the letters that actually set bolt and boost apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
bolt and boost form a confusable pair in the English index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by 1 letter(s) in length - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 10204, derived from the frequency rank of both members and their visual similarity.
bolt is recorded at frequency rank #6,659, classified as anoun, pronounced /bɒlt/. boost is at rank #3,545, tagged as anoun, pronounced /buːst/.
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 10204, this pair ranks #493,478 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Frequency comparison
Frequently Asked Questions
Can "bolt" and "boost" be used interchangeably?
Remembering bolt vs boost
The fastest way to pick the right one every time.
- Read both glosses above and match the meaning you intend, only context separates this pair.
- See each word in full, definition, IPA, etymology and its other confusables. Full “bolt” entry
- Browse more pairs most likely to be confused. Most confusable