Is STABS a Wordle Word?

Yes. STABS 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 STABS mean?

4 more noun definitions

An attempt.
Criticism.
A single staccato chord that adds dramatic impact to a composition.“a horn stab”
A bacterial culture made by inoculating a solid medium, such as gelatin, with the puncture of a needle or wire.

To pierce or to wound (somebody) with a pointed tool or weapon, especially a knife or dagger.“If you stab him in the heart he won't live long enough to retaliate.”
To thrust in a stabbing motion.“to stab a dagger into a person”
To recklessly hit with the tip of a pointed object, such as a weapon or finger (often used with at).“He stabbed at my face with the twig but luckily kept missing my eyes.”

4 more verb definitions

To cause a sharp, painful sensation (often used with at).“The snow from the blizzard was stabbing at my face as I skied down the mountain.”
To injure secretly or by malicious falsehood or slander.“to stab a person's reputation”
To roughen a brick wall with a pick so as to hold plaster.
To pierce folded sheets, near their back edges, for the passage of thread or wire.

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

Starter word rating: WeakIn the top 70% of all valid Wordle words for testing common letters.
Vowels: A
Unique letters: 4 of 5Repeats S
Common letters: T, A

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.