tiramisu vs afters

tiramisu and afters both are nouns.

Word	Noun	Adjective	Verb	Adverb
tiramisu	Yes	No	No	No
afters	Yes	No	No	No

As nouns, afters is a hypernym of tiramisu; that is, afters is a word with a broader meaning than tiramisu:

tiramisu: an Italian dessert consisting of layers of sponge cake soaked with coffee and brandy or liqueur layered with mascarpone cheese and topped with grated chocolate
afters: a dish served as the last course of a meal

Other hypernyms of tiramisu include dessert, sweet.

tiramisu (noun)	afters (noun)
an Italian dessert consisting of layers of sponge cake soaked with coffee and brandy or liqueur layered with mascarpone cheese and topped with grated chocolate	a dish served as the last course of a meal