mullvsmulletWhat's the difference?

Quick tell: mull is a verb, mullet is a noun, so they fill different roles in a sentence.

Which to use

“mull” is a verb and “mullet” is a noun - they look or sound alike but fill different roles in a sentence.

#31,263
“mull” frequency rank
#30,147
“mullet” frequency rank
61410
confusion score

Side-by-Side Comparison

Feature mull mullet
Definition To work (over) mentally; to cogitate; to ruminate. A fish of the family Mullidae (order Syngnathiformes), especially the genus Mullus (red mullets or goatfish).

Where the eye mixes mull and mullet

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. mull runs 4 letters (CVCC) against mullet's 6 (CVCCVC) - the length gap alone is often enough to separate them once you know to check it.

4 ch
mull
6 ch
mullet

Look-alike desk: mull vs mullet

These two trip readers on the page rather than in the ear: mull is /mʌl/ while mullet is /ˈmʌlɪt/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “mull” sits inside “mullet”, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 61410, derived from the frequency rank of both members and their visual similarity.

mull is recorded at frequency rank #31,263, classified as averb, pronounced /mʌl/. mullet is at rank #30,147, tagged as anoun, pronounced /ˈmʌlɪt/.

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 61410, this pair ranks #94,432 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of mull vs mullet

Shared letters: lmu. Private to "mull": -. Private to "mullet": et.

"mull" · 4 letters · shape CVCC  ·  "mullet" · 6 letters · shape CVCCVC

Known mistypes of this pair

  • mull ← mlul · mmull · mul · umll
  • mullet ← mlulet · mmullet · mulelt · mulet · mullett · mullte · umllet

Frequently Asked Questions

Is swapping "mull" for "mullet" ever safe?
No - they are not even the same part of speech. "mull" is a verb and "mullet" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "mull" or "mullet"?
"mullet" is the more common of the two: it sits at frequency rank #30,147 in our English list, against #31,263 for "mull". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "mull" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "mullet" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #94,432 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "mull" and "mullet" also get mixed up with nearby pairs, the highest-scored neighbour is "mela vs mull". 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 #94,432 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