Which to use
“fighter” and “filter” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #4,158
- “fighter” frequency rank
- #4,449
- “filter” frequency rank
- 8607
- confusion score
Side-by-Side Comparison
| Feature | fighter | filter |
|---|---|---|
| Definition | A person who fights; a combatant. | A device which separates a suspended, dissolved, or particulate matter from a fluid, solution, or other substance; any device that separates one substance from another. |
Where the eye mixes fighter and filter
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.
Visual trap between fighter and filter
A purely visual mix-up. fighter (/ˈfaɪ.tə(ɹ)/) and filter (/ˈfɪltə/) 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 letter(s) in length. Our composite confusion score for this pair is 8607, derived from the frequency rank of both members and their visual similarity.
fighter is recorded at frequency rank #4,158, classified as anoun, pronounced /ˈfaɪ.tə(ɹ)/. filter is at rank #4,449, tagged as anoun, pronounced /ˈfɪltə/.
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 8607, this pair ranks #501,659 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of fighter vs filter
Shared letters: efirt. Private to "fighter": gh. Private to "filter": l.
"fighter" · 7 letters · shape CVCCCVC · "filter" · 6 letters · shape CVCCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "fighter" for "filter" ever safe?
Frequency check: "fighter" vs "filter" - 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 "fighter" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "filter" - compare definitions side by side with the headword page. Word entry
- This pair ranks #501,659 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "fighter" and "filter" also get mixed up with nearby pairs, the highest-scored neighbour is "filter vs fiver". 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 #501,659 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.