millvsMillyWhich spelling fits?

Quick tell: mill is a noun, Milly is a name, so they fill different roles in a sentence.

Which to use

“mill” is a noun and “Milly” is a name - they look or sound alike but fill different roles in a sentence.

#3,769
“mill” frequency rank
#27,215
“Milly” frequency rank
30984
confusion score

Side-by-Side Comparison

Feature mill Milly
Definition A grinding apparatus for substances such as grains, seeds, etc. (Some are small and simple, and some are large and complex.) A diminutive of the female given names Mildred, Millicent, Emily, or Camilla, also used as a formal given name.

Letter map: mill vs Milly

Shared letters muted; letters that set mill and Milly apart highlighted. Shared run: 4.

4 ch
mill
5 ch
Milly

Role in the sentence - mill and Milly

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: mill is anoun and Millyaname. On the page they differ by 1 extra letter(s) - “mill” sits inside “Milly”. Our composite confusion score for this pair is 30984, derived from the frequency rank of both members and their visual similarity.

mill is recorded at frequency rank #3,769, classified as anoun, pronounced /mɪl/. Milly is at rank #27,215, tagged as aname.

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 30984, this pair ranks #350,032 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of mill vs Milly

Shared letters: ilm. Private to "mill": -. Private to "Milly": y.

"mill" · 4 letters · shape CVCC  ·  "Milly" · 5 letters · shape CVCCV

Known mistypes of this pair

  • millimll · mlil · mmill
  • Millyimlly · millyy · mily · milyl · mlily · mmilly

Frequently Asked Questions

Is swapping "mill" for "Milly" ever safe?
No - they are not even the same part of speech. "mill" is a noun and "Milly" a name, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "mill" vs "Milly" - which ranks higher?
"mill" is the more common of the two: it sits at frequency rank #3,769 in our English list, against #27,215 for "Milly". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Done with this confusable. These links stay specific to "mill" and "Milly".

  • Full dictionary entry for "mill" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Milly" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #350,032 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "mill" and "Milly" also get mixed up with nearby pairs, the highest-scored neighbour is "Mello vs Milly". 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 #350,032 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