Venus's shoe vs orchid

Venus's shoe and orchid both are nouns.

Word	Noun	Adjective	Verb	Adverb
Venus's shoe	Yes	No	No	No
orchid	Yes	No	No	No

As nouns, orchid is a hypernym of Venus's shoe; that is, orchid is a word with a broader meaning than Venus's shoe:

Venus's shoe: any of various orchids of the genus Paphiopedilum having slender flower stalks bearing 1 to several waxy flowers with pouchlike lips
orchid: any of numerous plants of the orchid family usually having flowers of unusual shapes and beautiful colors

Other hypernyms of Venus's shoe include orchidaceous plant.

Venus's shoe (noun)	orchid (noun)
any of various orchids of the genus Paphiopedilum having slender flower stalks bearing 1 to several waxy flowers with pouchlike lips	any of numerous plants of the orchid family usually having flowers of unusual shapes and beautiful colors