Is NEVUS a Wordle Word?

Yes. NEVUS is a valid Wordle word.

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

Plurals ending in S are almost never chosen as Wordle answers.

What does NEVUS mean?

Any of a number of different, usually benign, pigmented, raised or otherwise abnormal lesions of the skin.“Most birthmarks and moles fall into the category of nevi.”

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

Starter word rating: WeakIn the top 45% of all valid Wordle words for testing common letters.
Vowels: E, U
Unique letters: 5 of 5
Common letters: 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.