Which to use
“fill” is a verb and “frills” is a noun - they look or sound alike but fill different roles in a sentence.
- #2,297
- “fill” frequency rank
- #32,813
- “frills” frequency rank
- 35110
- confusion score
Side-by-Side Comparison
| Feature | fill | frills |
|---|---|---|
| Definition | To make full | plural of frill |
Where the eye mixes fill and frills
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. fill runs 4 letters (CVCC) against frills's 6 (CCVCCC) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: fill vs frills
These two trip readers on the page rather than in the ear: fill is /fɪl/ while frills is /fɹɪlz/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 35110, derived from the frequency rank of both members and their visual similarity.
fill is recorded at frequency rank #2,297, classified as averb, pronounced /fɪl/. frills is at rank #32,813, tagged as anoun, pronounced /fɹɪlz/.
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 35110, this pair ranks #314,824 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of fill vs frills
Shared letters: fil. Private to "fill": -. Private to "frills": rs.
"fill" · 4 letters · shape CVCC · "frills" · 6 letters · shape CCVCCC
Known mistypes of this pair
Frequently Asked Questions
Do "fill" and "frills" mean the same thing in a sentence?
Frequency check: "fill" vs "frills" - which ranks higher?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "fill" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "frills" - compare definitions side by side with the headword page. Word entry
- This pair ranks #314,824 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "fill" and "frills" also get mixed up with nearby pairs, the highest-scored neighbour is "Fells vs frills". 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 #314,824 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.