UNIFACE is a playable word

uniface Scrabble® Dictionary

noun
pl. unifaces
a coin having a design on only one side
55 Playable Words can be made from "UNIFACE"
   2-Letter Words (13 found)
   3-Letter Words (18 found)
   4-Letter Words (18 found)
   5-Letter Words (3 found)
   6-Letter Words (2 found)
   7-Letter Words (1 found)