heyday vs bloom

heyday and bloom both are nouns.

Word	Noun	Adjective	Verb	Adverb
heyday	Yes	No	No	No
bloom	Yes	No	Yes	No

As nouns, heyday and bloom are synonyms defined as:

Other synonyms of heyday include blossom, efflorescence, flower, flush, peak, prime.

heyday (noun)	bloom (noun)
the period of greatest prosperity or productivity	a powdery deposit on a surface
	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

heyday (verb)	bloom (verb)
	produce or yield flowers