Which to use
“femur” and “feu” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #28,920
- “femur” frequency rank
- #43,641
- “feu” frequency rank
- 72561
- confusion score
Side-by-Side Comparison
| Feature | femur | feu |
|---|---|---|
| Definition | A thighbone. | Land held in feudal tenure. |
Where the eye mixes femur and feu
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. femur runs 5 letters (CVCVC) against feu's 3 (CVV) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between femur and feu
A purely visual mix-up. femur (/ˈfiːmə(ɹ)/) and feu (/fjuː/) 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 letter(s) in length. Our composite confusion score for this pair is 72561, derived from the frequency rank of both members and their visual similarity.
femur is recorded at frequency rank #28,920, classified as anoun, pronounced /ˈfiːmə(ɹ)/. feu is at rank #43,641, tagged as anoun, pronounced /fjuː/.
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 72561, this pair ranks #42,604 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of femur vs feu
Shared letters: efu. Private to "femur": mr. Private to "feu": -.
"femur" · 5 letters · shape CVCVC · "feu" · 3 letters · shape CVV
Known mistypes of this pair
- femur ← efmur · femmur · femru · femurr · feumr · ffemur · fmeur
Frequently Asked Questions
Do "femur" and "feu" mean the same thing in a sentence?
Which is more common, "femur" or "feu"?
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 "femur" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "feu" - compare definitions side by side with the headword page. Word entry
- This pair ranks #42,604 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "femur" and "feu" also get mixed up with nearby pairs, the highest-scored neighbour is "feu vs foh". 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 #42,604 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.