SYNCLINE is a playable word

syncline Scrabble® Dictionary

noun
pl. synclines
a type of rock formation
92 Playable Words can be made from "SYNCLINE"
   2-Letter Words (9 found)
   3-Letter Words (26 found)
   6-Letter Words (8 found)
   7-Letter Words (1 found)
   8-Letter Words (1 found)