Reuben vs sandwich

Reuben and sandwich both are nouns.

Word	Noun	Adjective	Verb	Adverb
Reuben	Yes	No	No	No
sandwich	Yes	No	Yes	No

As nouns, sandwich is a hypernym of Reuben; that is, sandwich is a word with a broader meaning than Reuben:

Reuben: a hot sandwich with corned beef (or pastrami), Swiss cheese and sauerkraut on rye bread
sandwich: two (or more) slices of bread with a filling between them

Reuben (noun)	sandwich (noun)
a hot sandwich with corned beef (or pastrami), Swiss cheese and sauerkraut on rye bread	two (or more) slices of bread with a filling between them
(Old Testment) a son of Jacob and forefather of one of the tribes of Israel

Reuben (verb)	sandwich (verb)
	insert or squeeze tightly between two people or objects
	make into a sandwich