n. Two thin slices of bread, plain or buttered, with some savory article of food, as sliced or potted meat, fish, or fowl, placed between: as, a ham sandwich; a cheese sandwich.n. Hence Anything resembling or suggesting a sandwich; something placed between two other like things, as a man carrying two advertising-boards, one before and one behind.To make into a sandwich or something of like arrangement; insert between two other things: as, to sandwich a slice of ham between two slices of bread; to sandwich a picture between two pieces of pasteboard.