ninevsninesTell them apart

Quick tell: nine is a num, nines is a noun, so they fill different roles in a sentence.

Which to use

“nine” is a num and “nines” is a noun - they look or sound alike but fill different roles in a sentence.

#1,431
“nine” frequency rank
#35,430
“nines” frequency rank
36861
confusion score

Side-by-Side Comparison

Feature nine nines
Definition A numerical value equal to 9; the number following eight and preceding ten. A pair of nines.

Letter map: nine vs nines

Shared letters muted; letters that set nine and nines apart highlighted. Shared run: 4. nine runs 4 letters (CVCV) against nines's 5 (CVCVC) - the length gap alone is often enough to separate them once you know to check it.

4 ch
nine
5 ch
nines

Part-of-speech tell for nine / nines

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: nine is anum and ninesanoun. On the page they differ by 1 extra letter(s) - “nine” sits inside “nines”. Our composite confusion score for this pair is 36861, derived from the frequency rank of both members and their visual similarity.

nine is recorded at frequency rank #1,431, classified as anum, pronounced /naɪn/. nines is at rank #35,430, tagged as anoun.

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 36861, this pair ranks #299,504 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of nine vs nines

Shared letters: ein. Private to "nine": -. Private to "nines": s.

"nine" · 4 letters · shape CVCV  ·  "nines" · 5 letters · shape CVCVC

Known mistypes of this pair

  • nine ← inne · nien · ninne · nnie · nnine
  • nines ← innes · niens · niness · ninnes · ninse · nnies · nnines

Frequently Asked Questions

Is swapping "nine" for "nines" ever safe?
No - they are not even the same part of speech. "nine" is a num and "nines" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "nine" or "nines"?
"nine" is the more common of the two: it sits at frequency rank #1,431 in our English list, against #35,430 for "nines". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

You've compared "nine" and "nines". Here's where to go from here.

  • Full dictionary entry for "nine" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "nines" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #299,504 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "nine" and "nines" also get mixed up with nearby pairs, the highest-scored neighbour is "nines vs Noyes". 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 #299,504 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