respiratory disease vs cough

respiratory disease and cough both are nouns.

Word	Noun	Adjective	Verb	Adverb
respiratory disease	Yes	No	No	No
cough	Yes	No	Yes	No

respiratory disease (noun)	cough (noun)
a disease affecting the respiratory system	a sudden noisy expulsion of air from the lungs that clears the air passages; a common symptom of upper respiratory infection or bronchitis or pneumonia or tuberculosis

respiratory disease (verb)	cough (verb)
	exhale abruptly, as when one has a chest cold or congestion