Is SHINS a Wordle Word?

Yes. SHINS 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 SHINS mean?

The front part of the leg below the knee; the front edge of the shin bone: Shinbone
A fishplate for a railway.

(as "shin up") To climb a mast, tree, rope, or the like, by embracing it alternately with the arms and legs, without help of steps, spurs, or the like.“to shin up a mast”
To strike with the shin.
To run about borrowing money hastily and temporarily, as when trying to make a payment.

The twenty-first letter of many Semitic alphabets/abjads (Phoenician, Aramaic, Hebrew, Syriac, Arabic and others): Shin (letter)

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

Starter word rating: WeakIn the top 83% of all valid Wordle words for testing common letters.
Vowels: I
Unique letters: 4 of 5Repeats S
Common letters: I

Hard-mode trap: 7 valid words fit the pattern SHI_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.