VIPER is a playable word

viper Scrabble® Dictionary

noun
pl. vipers
a venomous snake
(adjective) viperine, viperish, viperous

19 Playable Words can be made from "VIPER"

   2-Letter Words (4 found)

   3-Letter Words (8 found)

   4-Letter Words (6 found)

   5-Letter Words (1 found)