sandwich-n; 2 Senses

Sense Number 1: construction of an edible filling between bread slices

Commentary: SANDWICH[+entity][+construction][+flat][+food][+filling][+enclosed][+bread][+slices]

At tea, Mary served cucumber sandwiches and scones with clotted cream.
We had tomato soup and grilled cheese sandwiches for lunch.
These tuna melts are a kind of open-faced sandwich.

WordNet 3.0 Sense Numbers: 1

Sense Number 2: substances layered together

Commentary: SANDWICH[+entity][+construction][+flat][+layered][+material]

The table was a sandwich of plywood covered on both sides by a thin veneer of cherry.
The coal seam formed a sandwich between the long slabs of rock.

WordNet 0.0 Sense Numbers: 1a