Which to use
“flu” and “fluke” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #7,564
- “flu” frequency rank
- #24,159
- “fluke” frequency rank
- 31723
- confusion score
Side-by-Side Comparison
| Feature | flu | fluke |
|---|---|---|
| Definition | Influenza. | A lucky or improbable occurrence that could probably never be repeated. |
Where the eye mixes flu and fluke
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Look-alike desk: flu vs fluke
A purely visual mix-up. flu (/fluː/) and fluke (/fluːk/) 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 2 extra letter(s) - “flu” sits inside “fluke”. Our composite confusion score for this pair is 31723, derived from the frequency rank of both members and their visual similarity.
flu is recorded at frequency rank #7,564, classified as anoun, pronounced /fluː/. fluke is at rank #24,159, tagged as anoun, pronounced /fluːk/.
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 31723, this pair ranks #343,778 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of flu vs fluke
Shared letters: flu. Private to "flu": -. Private to "fluke": ek.
"flu" · 3 letters · shape CCV · "fluke" · 5 letters · shape CCVCV
Known mistypes of this pair
- fluke ← ffluke · flkue · flluke · fluek · flukke · fulke · lfuke
Frequently Asked Questions
Can "flu" and "fluke" be used interchangeably?
Which is more common, "flu" or "fluke"?
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 "flu" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "fluke" - compare definitions side by side with the headword page. Word entry
- This pair ranks #343,778 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "flu" and "fluke" also get mixed up with nearby pairs, the highest-scored neighbour is "flaked vs fluke". 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 #343,778 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.