Which to use
“expert” is an adjective and “expire” is a verb - they look or sound alike but fill different roles in a sentence.
- #2,677
- “expert” frequency rank
- #14,121
- “expire” frequency rank
- 16798
- confusion score
Side-by-Side Comparison
| Feature | expert | expire |
|---|---|---|
| Definition | Extraordinary capable or knowledgeable. | To die. |
Where the spellings diverge
Shared letters are muted; the letters that actually set expert and expire apart are highlighted. They share 4 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
These two trip readers on the page rather than in the ear: expert is /ˈɛk.spɜːt/ while expire is /ɪkˈspaɪə(ɹ)/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adjective vs verb), which is usually the fastest check. Our composite confusion score for this pair is 16798, derived from the frequency rank of both members and their visual similarity.
expert is recorded at frequency rank #2,677, classified as anadj, pronounced /ˈɛk.spɜːt/. expire is at rank #14,121, tagged as averb, pronounced /ɪkˈspaɪə(ɹ)/.
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 16798, this pair ranks #455,515 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of expert vs expire
Shared letters: eprx. Private to "expert": t. Private to "expire": i.
"expert" · 6 letters · shape VCCVCC · "expire" · 6 letters · shape VCCVCV
Known mistypes of this pair
Frequency comparison
Frequently Asked Questions
Can "expert" and "expire" be used interchangeably?
Which is more common, "expert" or "expire"?
Remembering expert vs expire
The fastest way to pick the right one every time.
- Check the role first: if you need an adjective, it's “expert”; for a verb, it's “expire”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “expert” entry
- Browse more pairs most likely to be confused. Most confusable