Is PIEZO a Wordle Word?

Yes. PIEZO is a valid Wordle word.

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

What does PIEZO mean?

Of or relating to a kind of ignition, used in portable camping stoves etc., where pressing a button causes a small spring-loaded hammer to strike a crystal of PZT or quartz, creating a voltage which ignites the gas.

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

Starter word rating: WeakIn the top 50% of all valid Wordle words for testing common letters.
Vowels: I, E, O
Unique letters: 5 of 5
Common letters: I, E, O
Rare letters: Z

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.