glucoside vs saponin

glucoside and saponin both are nouns.

Word	Noun	Adjective	Verb	Adverb
glucoside	Yes	No	No	No
saponin	Yes	No	No	No

As nouns, saponin is a hyponym of glucoside; that is, saponin is a word with a more specific, narrower meaning than glucoside:

glucoside: a glycoside derived from glucose
saponin: any of various plant glucosides that form soapy lathers when mixed and agitated with water; used in detergents and foaming agents and emulsifiers

Other hyponyms of glucoside include amygdalin.

glucoside (noun)	saponin (noun)
a glycoside derived from glucose	any of various plant glucosides that form soapy lathers when mixed and agitated with water; used in detergents and foaming agents and emulsifiers