cheerio

NOUN /ʧiri,oʊ/
7 LETTERS · 3 SYLLABLES · STARTS WITH C

cheerio is a valid 7-letter word worth 12 points in Scrabble and 12 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
C3H4E1E1R1I1O1
3 + 4 + 1 + 1 + 1 + 1 + 1 =12 PTS
DOUBLE WORD → 24TRIPLE WORD → 36
MEANING

What does cheerio mean?