musclevsmusselWhich spelling fits?

Which to use

“muscle” and “mussel” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#3,379
“muscle” frequency rank
#39,926
“mussel” frequency rank
43305
confusion score

Side-by-Side Comparison

Feature muscle mussel
Definition A contractile form of tissue which animals use to effect movement. Any of several groups of bivalve shellfish with elongated, asymmetrical shells.

Same sound, different letters: muscle vs mussel

Muted letters are shared; highlighted letters are the only spelling cue when pronunciation matches. Shared run: 4 letters. muscle (CVCCCV) and mussel (CVCCVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

6 ch
muscle
6 ch
mussel

Ear matches; page differs - muscle and mussel

This is the hard kind. muscle and mussel are pronounced identically (/ˈmʌs.əl/) and both work as anoun. Neither the ear nor the grammar will rescue you; only the meaning does, so the glosses below are the whole decision. They share most of their letters but differ in 3 positions. Our composite confusion score for this pair is 43305, derived from the frequency rank of both members and their visual similarity.

muscle is recorded at frequency rank #3,379, classified as anoun, pronounced /ˈmʌs.əl/. mussel is at rank #39,926, tagged as anoun, pronounced /ˈmʌsəl/.

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 43305, this pair ranks #241,269 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of muscle vs mussel

Shared letters: elmsu. Private to "muscle": c. Private to "mussel": -.

"muscle" · 6 letters · shape CVCCCV  ·  "mussel" · 6 letters · shape CVCCVC

Known mistypes of this pair

  • muscle ← mmuscle · msucle · mucsle · musccle · muscel · musclle · muslce · musscle
  • mussel ← mmussel · msusel · musel · musesl · mussell · mussle · umssel

Frequently Asked Questions

Do "muscle" and "mussel" mean the same thing in a sentence?
No. They are pronounced the same (/ˈmʌs.əl/), which is exactly why they get swapped in writing, but the dictionary meanings above are different, and pronunciation is no guide here.
Frequency check: "muscle" vs "mussel" - which ranks higher?
"muscle" is the more common of the two: it sits at frequency rank #3,379 in our English list, against #39,926 for "mussel". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

You've separated the homophone pair "muscle" / "mussel". Follow the links when you need the full entry or a neighbour that trips the same ear.

  • Full dictionary entry for "muscle" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "mussel" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #241,269 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "muscle" and "mussel" also get mixed up with nearby pairs, the highest-scored neighbour is "morsel vs mussel". 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 #241,269 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list