golden age vs bloom

golden age and bloom both are nouns.

Word	Noun	Adjective	Verb	Adverb
golden age	Yes	No	No	No
bloom	Yes	No	Yes	No

As nouns, bloom is a hypernym of golden age; that is, bloom is a word with a broader meaning than golden age:

Other hypernyms of golden age include blossom, efflorescence, flower, flush, heyday, peak, prime.

golden age (noun)	bloom (noun)
any period (sometimes imaginary) of great peace and prosperity and happiness	a powdery deposit on a surface
a time period when some activity or skill was at its peak	reproductive organ of angiosperm plants especially one having showy or colorful parts
	the organic process of bearing flowers
	a rosy color (especially in the cheeks) taken as a sign of good health
	the best time of youth
	the period of greatest prosperity or productivity

golden age (verb)	bloom (verb)
	produce or yield flowers