CIRRUS is a playable word

cirrus Scrabble® Dictionary

noun
pl. cirri
a tendril or similar part
16 Playable Words can be made from "CIRRUS"
   2-Letter Words (3 found)
   3-Letter Words (6 found)
   4-Letter Words (5 found)
   5-Letter Words (1 found)
   6-Letter Words (1 found)