orchid vs flower

orchid and flower both are nouns.

Word	Noun	Adjective	Verb	Adverb
orchid	Yes	No	No	No
flower	Yes	No	Yes	No

As nouns, flower is a hypernym of orchid; that is, flower is a word with a broader meaning than orchid:

orchid: any of numerous plants of the orchid family usually having flowers of unusual shapes and beautiful colors
flower: a plant cultivated for its blooms or blossoms

orchid (noun)	flower (noun)
any of numerous plants of the orchid family usually having flowers of unusual shapes and beautiful colors	a plant cultivated for its blooms or blossoms
	reproductive organ of angiosperm plants especially one having showy or colorful parts
	the period of greatest prosperity or productivity

orchid (verb)	flower (verb)
	produce or yield flowers