tapioca vs cassava

tapioca and cassava both are nouns.

Word	Noun	Adjective	Verb	Adverb
tapioca	Yes	No	No	No
cassava	Yes	No	No	No

tapioca (noun)	cassava (noun)
granular preparation of cassava starch used to thicken especially puddings	any of several plants of the genus Manihot having fleshy roots yielding a nutritious starch
	cassava root eaten as a staple food after drying and leaching; source of tapioca
	a starch made by leaching and drying the root of the cassava plant; the source of tapioca; a staple food in the tropics