UMBONIC is a playable word

umbo Scrabble® Dictionary

noun
pl. umbos or umbones
the rounded elevation at the center of a shield
(adjective) umbonal, umbonate, umbonic

57 Playable Words can be made from "UMBONIC"

   2-Letter Words (13 found)

   3-Letter Words (23 found)

   4-Letter Words (11 found)

   5-Letter Words (6 found)

   6-Letter Words (3 found)

   7-Letter Words (1 found)