nut tree

NOUN
8 LETTERS · STARTS WITH N

nut tree is a valid 8-letter word worth 7 points in Scrabble and 9 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
N1U1T1T1R1E1E1
1 + 1 + 1 + 0 + 1 + 1 + 1 + 1 =7 PTS
DOUBLE WORD → 14TRIPLE WORD → 21
MEANING

What does nut tree mean?