Which to use
“pair” is a noun and “plain” is an adjective - they look or sound alike but fill different roles in a sentence.
- #1,955
- “pair” frequency rank
- #3,446
- “plain” frequency rank
- 5401
- confusion score
Side-by-Side Comparison
| Feature | pair | plain |
|---|---|---|
| Definition | Two alike or identical things taken together; often followed by of. | Flat, level. |
Where the eye mixes pair and plain
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Spelling & Dictionary Insight
These two trip readers on the page rather than in the ear: pair is /pɛə/ while plain is /pleɪn/. 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 (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 5401, derived from the frequency rank of both members and their visual similarity.
pair is recorded at frequency rank #1,955, classified as anoun, pronounced /pɛə/. plain is at rank #3,446, tagged as anadj, pronounced /pleɪn/.
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 5401, this pair ranks #515,481 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of pair vs plain
Shared letters: aip. Private to "pair": r. Private to "plain": ln.
"pair" · 4 letters · shape CVVC · "plain" · 5 letters · shape CCVVC