RIVAL is a playable word

rival Scrabble® Dictionary

verb
rivaled, rivaling, rivals or rivalled, rivalling, rivals
to strive to equal or surpass
26 Playable Words can be made from "RIVAL"
   2-Letter Words (5 found)
   3-Letter Words (8 found)
   4-Letter Words (11 found)
   5-Letter Words (2 found)