Is SHTIK a Wordle Word?

Yes. SHTIK is a valid Wordle word.

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

What does SHTIK mean?

Alternative spelling of shtick: A generally humorous routine.“Yes, I’ve heard the shtik from every muscle-car manufacturer: We only make a handful of these; most owners use them as weekend toys; boomers are willing to pay the price for nostalgic fun.”

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

Starter word rating: WeakIn the top 67% of all valid Wordle words for testing common letters.
Vowels: I
Unique letters: 5 of 5
Common letters: T, I

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.