1. Botany. a. Any of various photosynthetic, eukaryotic, multicellular organisms of the kingdom Plantae characteristically producing embryos, containing chloroplasts, having cellulose cell walls, and lacking the power of locomotion. b. A plant having no permanent woody stem; an herb.

2. a. A building or group of buildings for the manufacture of a product; a factory. b. The equipment, including machinery, tools, instruments, and fixtures and the buildings containing them, necessary for an industrial or manufacturing operation.

3. The buildings, equipment, and fixtures of an institution: the entire plant of a university.

4. A person or thing put into place in order to mislead or function secretly, especially: a. A person placed in a group of spectators to influence behavior. b. A person stationed in a given location as a spy or an observer. c. A misleading piece of evidence placed so as to be discovered. d. A remark or an action in a play or narrative that becomes important later.

5. Slang. A scheming trick; a swindle.

1. a. To place or set (seeds, for example) in the ground to grow. b. To place seeds or young plants in (land); sow: plant a field in corn.

2. a. To place (spawn or young fish) in water or an underwater bed for cultivation: plant oysters. b. To stock with spawn or fish.

3. To introduce (an animal) into an area.

4. To set firmly in position; fix: planted both feet on the ground.

5. To establish; found: plant a colony.

6. To fix firmly in the mind; implant: "The right of revolution is planted in the heart of man" (Clarence Darrow).

7. a. To station (a person) for the purpose of functioning in secret, as by observing, spying, or influencing behavior: Detectives were planted all over the store. b. To place so as to be discovered and to mislead: planted a gun on the corpse to make the death look like suicide.

8. Slang. To conceal; hide.

9. Slang. To deliver (a blow or punch).