intercessor

NOUN /,ɪntər'sɛsər/
11 LETTERS · 4 SYLLABLES · STARTS WITH I

intercessor is a valid 11-letter word worth 13 points in Scrabble and 15 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
I1N1T1E1R1C3E1S1S1O1R1
1 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 =13 PTS
DOUBLE WORD → 26TRIPLE WORD → 39
MEANING

What does intercessor mean?