SYCON is a playable word

sycon Scrabble® Dictionary

noun
pl. sycons
a type of sponge
(adjective) syconoid
23 Playable Words can be made from "SYCON"
   2-Letter Words (6 found)
   3-Letter Words (10 found)
   4-Letter Words (6 found)
   5-Letter Words (1 found)