ISOGONE is a playable word

isogone Scrabble® Dictionary

noun
pl. isogones
a line on a map used to show characteristics of the earth's magnetic field
83 Playable Words can be made from "ISOGONE"
   2-Letter Words (14 found)
   3-Letter Words (26 found)
   5-Letter Words (9 found)
   6-Letter Words (4 found)
   7-Letter Words (3 found)