toss in vs supply

toss in is not a noun while supply is a noun.

Word	Noun	Adjective	Verb	Adverb
toss in	No	No	Yes	No
supply	Yes	No	Yes	No

As verbs, supply is a hypernym of toss in; that is, supply is a word with a broader meaning than toss in:

Other hypernyms of toss in include add, append.

toss in (noun)	supply (noun)
	the activity of supplying or providing something
	offering goods and services for sale
	an amount of something available for use

toss in (verb)	supply (verb)
add casually to a conversation	state or say further
	give what is desired or needed, especially support, food or sustenance
	give something useful or necessary to
	circulate or distribute or equip with