merlinvsmoulinWhat's the difference?

Which to use

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

#16,749
“merlin” frequency rank
#40,803
“moulin” frequency rank
57552
confusion score

Side-by-Side Comparison

Feature merlin moulin
Definition A small falcon, Falco columbarius, that breeds in northern North America, Europe, and Asia. A cylindrical, vertical shaft that extends through a glacier and is carved by meltwater from the glacier’s surface.

Where the eye mixes merlin and moulin

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. merlin (CVCCVC) and moulin (CVVCVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

6 ch
merlin
6 ch
moulin

Why the eye confuses merlin with moulin

A purely visual mix-up. merlin (/ˈmɝlɪn/) and moulin (/ˈmuːlæn/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 57552, derived from the frequency rank of both members and their visual similarity.

merlin is recorded at frequency rank #16,749, classified as anoun, pronounced /ˈmɝlɪn/. moulin is at rank #40,803, tagged as anoun, pronounced /ˈmuːlæn/.

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 57552, this pair ranks #118,566 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of merlin vs moulin

Shared letters: ilmn. Private to "merlin": er. Private to "moulin": ou.

"merlin" · 6 letters · shape CVCCVC  ·  "moulin" · 6 letters · shape CVVCVC

Known mistypes of this pair

  • merlin ← emrlin · melrin · meriln · merlinn · merllin · merlni · merrlin · mmerlin
  • moulin ← mmoulin · moluin · mouiln · moulinn · moullin · moulni · muolin · omulin

Frequently Asked Questions

Is swapping "merlin" for "moulin" ever safe?
No. They are said differently (/ˈmɝlɪn/ versus /ˈmuːlæn/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "merlin" vs "moulin" - which ranks higher?
"merlin" is the more common of the two: it sits at frequency rank #16,749 in our English list, against #40,803 for "moulin". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "merlin" and "moulin" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "merlin" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "moulin" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #118,566 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "merlin" and "moulin" also get mixed up with nearby pairs, the highest-scored neighbour is "moline vs moulin". 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 #118,566 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