whenvsWuhanConfusable pair

Quick tell: when is a adverb, Wuhan is a name, so they fill different roles in a sentence.

Which to use

“when” is an adverb and “Wuhan” is a name - they look or sound alike but fill different roles in a sentence.

#48
“when” frequency rank
#38,250
“Wuhan” frequency rank
38298
confusion score

Side-by-Side Comparison

Feature when Wuhan
Definition At what time? At which time? Upon which occasion or circumstance? Used to introduce direct or indirect questions about time. A subprovincial city, the provincial capital of Hubei, China.

Where the eye mixes when and Wuhan

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

4 ch
when
5 ch
Wuhan

Look-alike desk: when vs Wuhan

These two trip readers on the page rather than in the ear: when is /ˈwɛn/ while Wuhan is /ˈwuːˈhɑːn/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adverb vs name), which is usually the fastest check. Our composite confusion score for this pair is 38298, derived from the frequency rank of both members and their visual similarity.

when is recorded at frequency rank #48, classified as anadv, pronounced /ˈwɛn/. Wuhan is at rank #38,250, tagged as aname, pronounced /ˈwuːˈhɑːn/.

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 38298, this pair ranks #287,137 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of when vs Wuhan

Shared letters: hnw. Private to "when": e. Private to "Wuhan": au.

"when" · 4 letters · shape CCVC  ·  "Wuhan" · 5 letters · shape CVCVC

Known mistypes of this pair

  • whenhwen · wehn · whenn · whhen · whne · wwhen
  • Wuhanuwhan · whuan · wuahn · wuhann · wuhhan · wuhna · wwuhan

Frequently Asked Questions

Can "when" and "Wuhan" be used interchangeably?
No - they are not even the same part of speech. "when" is an adverb and "Wuhan" a name, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "when" or "Wuhan" show up more?
"when" is the more common of the two: it sits at frequency rank #48 in our English list, against #38,250 for "Wuhan". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "when" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Wuhan" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #287,137 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "when" and "Wuhan" also get mixed up with nearby pairs, the highest-scored neighbour is "wean vs Wuhan". 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 #287,137 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