Which to use
“flume” and “fume” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #36,562
- “flume” frequency rank
- #45,384
- “fume” frequency rank
- 81946
- confusion score
Side-by-Side Comparison
| Feature | flume | fume |
|---|---|---|
| Definition | A ravine or gorge, usually one with water running through. | A gas or vapour/vapor that is strong-smelling or dangerous to inhale. |
Where the eye mixes flume and fume
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. flume runs 5 letters (CCVCV) against fume's 4 (CVCV) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses flume with fume
A purely visual mix-up. flume (/fluːm/) and fume (/fjuːm/) 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 81946, derived from the frequency rank of both members and their visual similarity.
flume is recorded at frequency rank #36,562, classified as anoun, pronounced /fluːm/. fume is at rank #45,384, tagged as anoun, pronounced /fjuːm/.
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 81946, this pair ranks #16,652 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of flume vs fume
Shared letters: efmu. Private to "flume": l. Private to "fume": -.
"flume" · 5 letters · shape CCVCV · "fume" · 4 letters · shape CVCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "flume" for "fume" ever safe?
Which is more common, "flume" or "fume"?
After this comparison
Eye-level mix-up between "flume" and "fume" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "flume" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "fume" - compare definitions side by side with the headword page. Word entry
- This pair ranks #16,652 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "flume" and "fume" also get mixed up with nearby pairs, the highest-scored neighbour is "FOMO vs fume". 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 #16,652 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.