Is PINNA a Wordle Word?

Yes. PINNA is a valid Wordle word.

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

What does PINNA mean?

The visible part of the ear that resides outside of the head, the auricle; outer ear excluding the ear canal.
A leaflet or primary segment of a pinnate compound leaf.
A feather, wing, fin, or other similar appendage.

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: I, A
Unique letters: 4 of 5Repeats N
Common letters: I, A

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.