Is SEXES a Wordle Word?

Yes. SEXES 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 SEXES mean?

/ˈsɛksɪz/

An offshoot of a larger religion; a group sharing particular (often unorthodox) political and/or religious beliefs.“A religious sect.”
A group following a specific ideal or a leader.
A cutting; a scion.

A category into which sexually-reproducing organisms are divided on the basis of their reproductive roles in their species.“The effect of the medication is dependent upon age, sex, and other factors.”
Another category, especially of humans and especially based on sexuality or gender roles.
The members of such a category, taken collectively.

4 more noun definitions

The distinction and relation between these categories, especially in humans; gender.
(with "the") Women; the human female sex and those who belong to it.
Sexual activity, usually sexual intercourse unless preceded by a modifier.
Genitalia: a penis or vagina.

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

Starter word rating: WeakIn the top 97% of all valid Wordle words for testing common letters.
Vowels: E
Unique letters: 3 of 5Repeats S, E
Common letters: E
Rare letters: X

Hard-mode trap: 11 valid words fit the pattern _EXES. If you reach it, you may need several guesses to find the last letter.

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.