to expel air from the lungs suddenly with a harsh noise, often involuntarily.

(of an internal-combustion engine) to make a similar noise as a result of the failure of one or more cylinders to fire in sequence.

to make a similar sound, as a machine gun firing in spurts.

to expel by coughing (usually fol. by up or out )

to cough up phlegm.

the act or sound of coughing.

an illness characterized by frequent coughing.

a sound similar to a cough, a machine gun, or an engine firing improperly. ?

cough up, Slang .

to relinquish, esp. reluctantly; contribute; give.

to blurt out; state, as by way of making a confession

After several hours of vigorous questioning by the police, he finally coughed up the information.

noun

ahem , bark , cold , croup , frog in throat , hack , hem , tickle in throat , whoop

verb

bark , choke , clear throat , convulse , expectorate , hack , hawk , hem , spit up , vomit , whoop , ahem , cold , pertussis , tussis