ARCHAEAN is a playable word

archaean Scrabble® Dictionary

noun
pl. archaeans
a microorganism of the archaea
71 Playable Words can be made from "ARCHAEAN"
   2-Letter Words (13 found)
   3-Letter Words (20 found)
   5-Letter Words (12 found)
   6-Letter Words (3 found)
   7-Letter Words (1 found)
   8-Letter Words (1 found)