ninevsninesWhat's the difference?

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.

Where the spellings diverge

Shared letters are muted; the letters that actually set nine and nines apart are highlighted. They share 4 letters in sequence, which is exactly why the eye skips the difference.

4 ch
nine
5 ch
nines

Spelling & Dictionary Insight

nine and nines form a confusable pair in the English index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by 1 extra letter(s) - “nine” sits inside “nines” - close enough that the eye skips over the difference, far enough that meaning fully diverges. 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.

Frequency comparison

nine#1,431
nines#35,430

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "nine" and "nines" be used interchangeably?
No, "nine" and "nines" have distinct meanings and cannot be swapped without changing the meaning of a sentence. Understanding the specific definition and context for each word is essential for correct usage.

Remembering nine vs nines

The fastest way to pick the right one every time.

  • Check the role first: if you need a num, it's “nine”; for a noun, it's “nines”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “nine” 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