trainman

NOUN /treɪnmən/
8 LETTERS · 2 SYLLABLES · STARTS WITH T

trainman is a valid 8-letter word worth 10 points in Scrabble and 13 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
T1R1A1I1N1M3A1N1
1 + 1 + 1 + 1 + 1 + 3 + 1 + 1 =10 PTS
DOUBLE WORD → 20TRIPLE WORD → 30
MEANING

What does trainman mean?