Door: a flat object that is used to close the entrance of something such as a room or building, or the entrance itself.
Noun/ Stephanie doesn't want to close the door.
forest: a large area of land covered with trees and plants, usually larger than a wood, or the trees and plants themselve.
Noun/ yesterday we went to the forest to camp.
Oar: a long pole with a wide, flat part at one end, used for rowing a boat.
Noun: we went on a raft and rowed with the oars.