cough

intransitive verb

1. to expel air suddenly and noisily from the lungs through the glottis, either as the result of an involuntary muscular spasm in the throat or to clear the air passages
2. to make a sound like this

transitive verb

1. to expel by coughing
2. to express or utter by coughing

noun

1. the act or sound of coughing
2. a condition, as of the lungs or throat, causing frequent coughing