chondroma vs benign tumour

chondroma and benign tumour both are nouns.

Word	Noun	Adjective	Verb	Adverb
chondroma	Yes	No	No	No
benign tumour	Yes	No	No	No

As nouns, benign tumour is a hypernym of chondroma; that is, benign tumour is a word with a broader meaning than chondroma:

Other hypernyms of chondroma include benign tumor, nonmalignant neoplasm, nonmalignant tumor, nonmalignant tumour.

chondroma (noun)	benign tumour (noun)
a common benign tumor of cartilage cells	a tumor that is not cancerous