Bed (noun)

1. A piece of furniture for sleep or rest, typically consisting of a flat base with a raised surface for a person to lie on, supported by four legs or a solid frame.
2. A flat base of soil in a garden or farm where plants are grown.
3. A geological layer of rock or sediment, especially one of a specified thickness or character.
4. An area of shallow water or mud where fish or other aquatic animals can be caught.

Origin:

Old english bedd, bed; of germanic origin; related to dutch bed and german bett.

Examples:

1. She crawled into bed and pulled the covers up to her chin.
2. The bed of the lake was covered with silt.
3. This plant needs to be grown in a sunny bed.
4. The fisherman cast his line into the shallow bed.
5. The room had a comfortable king-sized bed.