Which to use
“muck” and “MUD” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #24,837
- “muck” frequency rank
- #5,815
- “MUD” frequency rank
- 30652
- confusion score
Side-by-Side Comparison
| Feature | muck | MUD |
|---|---|---|
| Definition | Slimy mud, sludge. | Acronym of multi-user dungeon, an interactive online environment in which players may jointly engage in fantasy role-playing games. |
Where the eye mixes muck and MUD
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: muck vs MUD
A purely visual mix-up. muck (/mʌk/) and MUD (/mʌd/) 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 30652, derived from the frequency rank of both members and their visual similarity.
muck is recorded at frequency rank #24,837, classified as anoun, pronounced /mʌk/. MUD is at rank #5,815, tagged as anoun, pronounced /mʌd/.
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 30652, this pair ranks #352,784 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of muck vs MUD
Shared letters: mu. Private to "muck": ck. Private to "MUD": d.
"muck" · 4 letters · shape CVCC · "MUD" · 3 letters · shape CVC
Known mistypes of this pair
- muck ← mcuk · mmuck · mucck · muckk · mukc · umck
Frequently Asked Questions
Is swapping "muck" for "MUD" ever safe?
Which is more common, "muck" or "MUD"?
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 "muck" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "MUD" - compare definitions side by side with the headword page. Word entry
- This pair ranks #352,784 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "muck" and "MUD" also get mixed up with nearby pairs, the highest-scored neighbour is "muck vs muda". 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 #352,784 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.