COUGH is a playable word

cough Scrabble® Dictionary

verb
coughed, coughing, coughs
to expel air from the lungs noisily
12 Playable Words can be made from "COUGH"
   2-Letter Words (4 found)
   3-Letter Words (5 found)
   4-Letter Words (2 found)
   5-Letter Words (1 found)