ECHIDNA is a playable word

echidna Scrabble® Dictionary

noun
pl. echidnas or echidnae
a spiny anteater
104 Playable Words can be made from "ECHIDNA"
   2-Letter Words (17 found)
   3-Letter Words (28 found)
   6-Letter Words (6 found)
   7-Letter Words (2 found)