Which to use
“outdoor” is an adjective and “outdoors” is an adverb - they look or sound alike but fill different roles in a sentence.
- #4,875
- “outdoor” frequency rank
- #11,083
- “outdoors” frequency rank
- 15958
- confusion score
Side-by-Side Comparison
| Feature | outdoor | outdoors |
|---|---|---|
| Definition | Situated in, designed to be used in, or carried on in the open air. | Not inside a house or under covered structure; unprotected; in the open air. |
Where the spellings diverge
Shared letters are muted; the letters that actually set outdoor and outdoors apart are highlighted. They share 7 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
outdoor and outdoors 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) - “outdoor” sits inside “outdoors” - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 15958, derived from the frequency rank of both members and their visual similarity.
outdoor is recorded at frequency rank #4,875, classified as anadj, pronounced /ˌaʊtˈdɔː/. outdoors is at rank #11,083, tagged as anadv, pronounced /aʊtˈdɔː(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 15958, this pair ranks #460,792 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Frequency comparison
Frequently Asked Questions
Can "outdoor" and "outdoors" be used interchangeably?
Remembering outdoor vs outdoors
The fastest way to pick the right one every time.
- Check the role first: if you need an adjective, it's “outdoor”; for an adverb, it's “outdoors”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “outdoor” entry
- Browse more pairs most likely to be confused. Most confusable