two or more slices of bread or the like with a layer of meat, fish, cheese, etc., between each pair.

open sandwich.

something resembling or suggesting a sandwich, as something in horizontal layers

a plywood sandwich.

to put into a sandwich.

to insert between two other things

to sandwich an appointment between two board meetings.

noun

blt , club sandwich , dagwood , hero * , hoagie , open-faced sandwich , reuben , sub , submarine sandwich , canape , cheeseburger , club , grinder , hamburger , hero , lunch , sloppy joe , submarine