Is MILLE a Wordle Word?

Yes. MILLE is a valid Wordle word.

It is not on the Wordle answer list, so it is unlikely to be a daily answer.

What does MILLE mean?

Alternative spelling of mill: A grinding apparatus for substances such as grains, seeds, etc. (Some are small and simple, and some are large and complex.)

Definition from Wiktionary, available under the CC BY-SA license.

Starter word rating: WeakIn the top 57% of all valid Wordle words for testing common letters.
Vowels: I, E
Unique letters: 4 of 5Repeats L
Common letters: I, L, E

Letter ratings use how often each letter appears in Wordle answers.

Tap its tiles to the colours Wordle showed, and the Wordle Solver lists every word that still fits, with the best next guess.