bloom vs blossom

bloom and blossom both are nouns.

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

As nouns, bloom and blossom are synonyms defined as:

bloom and blossom: reproductive organ of angiosperm plants especially one having showy or colorful parts

Other synonyms of bloom include flower.

As nouns, bloom and blossom are synonyms defined as:

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

As verbs, bloom and blossom are synonyms defined as:

Other synonyms of bloom include flower.

bloom (noun)	blossom (noun)
a powdery deposit on a surface	reproductive organ of angiosperm plants especially one having showy or colorful parts
reproductive organ of angiosperm plants especially one having showy or colorful parts	the period of greatest prosperity or productivity
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

bloom (verb)	blossom (verb)
produce or yield flowers	develop or come to a promising stage
	produce or yield flowers