Which to use
“when's” and “where's” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #22,550
- “when's” frequency rank
- #6,200
- “where's” frequency rank
- 28750
- confusion score
Side-by-Side Comparison
| Feature | when's | where's |
|---|---|---|
| Definition | Contraction of when + is. | Contraction of where + is. |
Where the eye mixes when's and where's
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. when's runs 5 letters (CCVCC) against where's's 6 (CCVCVC) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between when's and where's
A purely visual mix-up. when's (/wɛnz/) and where's (/wɛə(ɹ)z/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 28750, derived from the frequency rank of both members and their visual similarity.
when's is recorded at frequency rank #22,550, classified as acontraction, pronounced /wɛnz/. where's is at rank #6,200, tagged as acontraction, pronounced /wɛə(ɹ)z/.
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 28750, this pair ranks #368,611 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of when's vs where's
Shared letters: ehsw. Private to "when's": n. Private to "where's": r.
"when's" · 5 letters · shape CCVCC · "where's" · 6 letters · shape CCVCVC
Frequently Asked Questions
Is swapping "when's" for "where's" ever safe?
Which is more common, "when's" or "where's"?
What to do next
Eye-level mix-up between "when's" and "where's" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "when's" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "where's" - compare definitions side by side with the headword page. Word entry
- This pair ranks #368,611 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "when's" and "where's" also get mixed up with nearby pairs, the highest-scored neighbour is "when's vs wheres". Nearby pair
Confusion rank #368,611 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.