Which to use
“complain” and “complains” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #4,840
- “complain” frequency rank
- #15,587
- “complains” frequency rank
- 20427
- confusion score
Side-by-Side Comparison
| Feature | complain | complains |
|---|---|---|
| Definition | To express feelings of pain, dissatisfaction, or resentment. | third-person singular simple present indicative of complain |
Where the eye mixes complain and complains
Muted = shared; highlighted = the visual trap. They share 8 letters in sequence. complain runs 8 letters (CVCCCVVC) against complains's 9 (CVCCCVVCC) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between complain and complains
A purely visual mix-up. complain (/kəmˈpleɪn/) and complains (/kəmˈpleɪnz/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 extra letter(s) - “complain” sits inside “complains”. Our composite confusion score for this pair is 20427, derived from the frequency rank of both members and their visual similarity.
complain is recorded at frequency rank #4,840, classified as averb, pronounced /kəmˈpleɪn/. complains is at rank #15,587, tagged as averb, pronounced /kəmˈpleɪnz/.
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 20427, this pair ranks #431,163 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of complain vs complains
Shared letters: acilmnop. Private to "complain": -. Private to "complains": s.
"complain" · 8 letters · shape CVCCCVVC · "complains" · 9 letters · shape CVCCCVVCC
Known mistypes of this pair
Frequently Asked Questions
Can "complain" and "complains" be used interchangeably?
In ordinary English text, does "complain" or "complains" show up more?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "complain" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "complains" - compare definitions side by side with the headword page. Word entry
- This pair ranks #431,163 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "complain" and "complains" also get mixed up with nearby pairs, the highest-scored neighbour is "complains vs complies". 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 #431,163 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.