ISOGLOSS is a playable word

isogloss Scrabble® Dictionary

noun
pl. isoglosses
a line on a map between linguistically varied areas
48 Playable Words can be made from "ISOGLOSS"
   2-Letter Words (9 found)
   3-Letter Words (11 found)
   4-Letter Words (14 found)
   5-Letter Words (9 found)
   6-Letter Words (3 found)
   7-Letter Words (1 found)
   8-Letter Words (1 found)