LIGNIN is a playable word

lignin Scrabble® Dictionary

noun
pl. lignins
an essential part of woody tissue
12 Playable Words can be made from "LIGNIN"
   2-Letter Words (3 found)
   3-Letter Words (4 found)
   4-Letter Words (2 found)
   5-Letter Words (1 found)
   6-Letter Words (2 found)