Is MANNA a Wordle Word?

Yes. MANNA is a valid Wordle word.

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

What does MANNA mean?

/ˈmænə/

Food miraculously produced for the Israelites in the desert in the book of Exodus.
(by extension) Any boon which comes into one's hands by good luck.
The sugary sap of the manna gum tree which oozes out from holes drilled by insects and falls to the ground around the tree.http//www.museum.vic.gov.au/forest/plants/gum.html

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

Starter word rating: WeakIn the top 96% of all valid Wordle words for testing common letters.
Vowels: A
Unique letters: 3 of 5Repeats A, N
Common letters: A

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