Is STARS a Wordle Word?

Yes. STARS 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 STARS mean?

/stɑːz/

Any small luminous dot appearing in the cloudless portion of the night sky, especially with a fixed location relative to other such dots.
A luminous celestial body, made up of plasma (particularly hydrogen and helium) and having a spherical shape. Depending on context the sun may or may not be included.
A concave polygon with regular, pointy protrusions and indentations, generally with five or six points.

8 more noun definitions

An actor in a leading role.“Many Hollywood stars attended the launch party.”
An exceptionally talented or famous person, often in a specific field; a celebrity.“His teacher tells us he is a star pupil.”
An asterisk (*).
A symbol used to rate hotels, films, etc. with a higher number of stars denoting better quality.
A simple dance, or part of a dance, where a group of four dancers each put their right or left hand in the middle and turn around in a circle. You call them right-hand stars or left-hand stars, depending on the hand which is in the middle.
A planet supposed to influence one's destiny.“What's in the stars for you today? Find out in our horoscope.”
A star-shaped ornament worn on the breast to indicate rank or honour.
A composition of combustible matter used in the heading of rockets, in mines, etc., which, exploding in the air, presents a starlike appearance.

To appear as a featured performer or headliner, especially in an entertainment program.
To feature (a performer or a headliner), especially in a movie or an entertainment program.
To mark with a star or asterisk.

2 more verb definitions

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

Starter word rating: AverageIn the top 31% of all valid Wordle words for testing common letters.
Vowels: A
Unique letters: 4 of 5Repeats S
Common letters: T, A, R

Hard-mode trap: 8 valid words fit the pattern STA_S. 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.