cocktail vs stinger

cocktail and stinger both are nouns.

Word	Noun	Adjective	Verb	Adverb
cocktail	Yes	No	No	No
stinger	Yes	No	No	No

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

cocktail (noun)	stinger (noun)
a short mixed drink	a sharp stinging blow
an appetizer served as a first course at a meal	a sharp organ of offense or defense (as of a wasp or stingray or scorpion) often connected with a poison gland
	a remark capable of wounding mentally
	a cocktail made of made of creme de menthe and brandy