cough vs respiratory disease

cough and respiratory disease both are nouns.

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

cough (noun)	respiratory disease (noun)
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	a disease affecting the respiratory system

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