INDEX is a playable word

index Scrabble® Dictionary

noun
pl. indexes or indices
a type of reference guide at the end of a book
verb
indexed, indexing, indexes
to provide with an index
20 Playable Words can be made from "INDEX"
   2-Letter Words (8 found)
   3-Letter Words (6 found)
   4-Letter Words (4 found)
   5-Letter Words (2 found)