CARIBOU is a playable word

caribou Scrabble® Dictionary

noun
pl. caribous
a large deer
73 Playable Words can be made from "CARIBOU"
   2-Letter Words (8 found)
   3-Letter Words (32 found)
   4-Letter Words (18 found)
   5-Letter Words (13 found)
   7-Letter Words (2 found)