private parts

NOUN
13 LETTERS · 2 SYLLABLES · STARTS WITH P

private parts is a valid 13-letter word worth 19 points in Scrabble and 22 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
P3R1I1V4A1T1E1P3A1R1T1S1
3 + 1 + 1 + 4 + 1 + 1 + 1 + 0 + 3 + 1 + 1 + 1 + 1 =19 PTS
DOUBLE WORD → 38TRIPLE WORD → 57
MEANING

What does private parts mean?