Is TAIKO a Wordle Word?

Yes. TAIKO is a valid Wordle word.

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

What does TAIKO mean?

A traditional drum, beaten by yobidashi to announce the beginning of a tournament, and at the end of each day
A Japanese drum or a performance of several drummers in an ensemble (also called kumi-daiko).

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

Starter word rating: AverageIn the top 27% of all valid Wordle words for testing common letters.
Vowels: A, I, O
Unique letters: 5 of 5
Common letters: T, A, I, O

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.