(a layer of) material added to the inside of something

interlining

a long, green part of a plant, in which peas or beans grow

encasement of vegetable seeds

a long container for the blade of a sword, knife etc

case

a cover for the blade of a knife etc; condom

case

(the tissue forming) the outer covering of the body of a person; the outer covering of a banana, peach, plum etc

outer covering, especially of animate being

a wooden structure along the bottom of the walls of a room

interlining