LIFETIME is a playable word

lifetime Scrabble® Dictionary

noun
pl. lifetimes
the period of living existence
72 Playable Words can be made from "LIFETIME"
   2-Letter Words (12 found)
   3-Letter Words (22 found)
   5-Letter Words (7 found)
   6-Letter Words (1 found)
   8-Letter Words (1 found)