insolation vs therapy

insolation and therapy both are nouns.

Word	Noun	Adjective	Verb	Adverb
insolation	Yes	No	No	No
therapy	Yes	No	No	No

As nouns, therapy is a hypernym of insolation; that is, therapy is a word with a broader meaning than insolation:

insolation: therapeutic exposure to sunlight
therapy: (medicine) the act of caring for someone (as by medication or remedial training etc.)

Other hypernyms of insolation include treatment.

insolation (noun)	therapy (noun)
therapeutic exposure to sunlight	(medicine) the act of caring for someone (as by medication or remedial training etc.)
incident solar radiation
sudden prostration due to exposure to the sun or excessive heat