Is BRANK a Wordle Word?

Yes. BRANK is a valid Wordle word.

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

What does BRANK mean?

/ˈbɹæŋk/

A metal bridle formerly used as a torture device to hold the head of a scold and restrain the tongue.
A sort of bridle with wooden side pieces.“Your armour gude ye mauna shaw, / Nor yet appear like men o' weir; / As country lads be a' array'd, / Wi' branks and brecham on each mare.”
Buckwheat.“One - third of brank-ground , or mixed with any other kind of grain or roots, is as large a proportion as can be given with safety”

To put someone in the branks.
To hold up and toss the head; applied to horses as spurning the bit.
To prance; to caper.“Donald came branking down the brae Wi' twenty thousand men.”

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

Starter word rating: WeakIn the top 49% of all valid Wordle words for testing common letters.
Vowels: A
Unique letters: 5 of 5
Common letters: R, A

Hard-mode trap: 6 valid words fit the pattern _RANK. 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.