SUNKER is a playable word

sunker Scrabble® Dictionary

noun
pl. sunkers
a ridge of rock near the surface of the sea
52 Playable Words can be made from "SUNKER"
   2-Letter Words (8 found)
   3-Letter Words (18 found)
   4-Letter Words (19 found)
   5-Letter Words (6 found)
   6-Letter Words (1 found)