cough
1. cough \'ko.f\ vb [ME coughen, fr. (assumed) OE cohhian; akin to MHG ku-chen] to breathe heavily 1: to expel air from the lungs suddenly with an explosive noise 2: to make a noise like that of coughing : to expel by coughing {~ up mucus} 2. cough n 1: a condition marked by repeated or frequent coughing 2: an act or sound of coughing