PINGOS is a playable word

pingo Scrabble® Dictionary

noun
pl. pingos or pingoes
a low mound of earth formed by expansion of underlying frost
63 Playable Words can be made from "PINGOS"
   2-Letter Words (13 found)
   3-Letter Words (21 found)
   4-Letter Words (18 found)
   5-Letter Words (8 found)
   6-Letter Words (3 found)