whosvswhy'sWhat's the difference?

Quick tell: whos is a noun, why's is a contraction, so they fill different roles in a sentence.

Which to use

“whos” is a noun and “why's” is a contraction - they look or sound alike but fill different roles in a sentence.

#27,029
“whos” frequency rank
#28,792
“why's” frequency rank
55821
confusion score

Side-by-Side Comparison

Feature whos why's
Definition plural of who; often used along with whats, whys, hows, etc. Contraction of why + is.

Where the spellings diverge

Shared letters are muted; the letters that actually set whos and why's apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.

4 ch
whos
5 ch
why's

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: whos is anoun and why'sacontraction. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 55821, derived from the frequency rank of both members and their visual similarity.

whos is recorded at frequency rank #27,029, classified as anoun, pronounced /huːz/. why's is at rank #28,792, tagged as acontraction.

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 55821, this pair ranks #130,715 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of whos vs why's

Shared letters: hsw. Private to "whos": o. Private to "why's": y.

"whos" · 4 letters · shape CCVC  ·  "why's" · 4 letters · shape CCVC

Known mistypes of this pair

  • whoshwos · whhos · whoss · whso · wohs · wwhos

Frequency comparison

whos#27,029
why's#28,792

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "whos" and "why's" be used interchangeably?
No - they are not even the same part of speech. "whos" is a noun and "why's" a contraction, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "whos" or "why's"?
"whos" is the more common of the two: it sits at frequency rank #27,029 in our English list, against #28,792 for "why's". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering whos vs why's

The fastest way to pick the right one every time.

  • Check the role first: if you need a noun, it's “whos”; for a contraction, it's “why's”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “whos” entry
  • Browse more pairs most likely to be confused. Most confusable

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list