The noun plant has 4 senses (first 3 from tagged texts)
1. (338) plant, works, industrial plant -- (buildings for carrying on industrial labor; "they built a large plant to manufacture automobiles")
2. (207) plant, flora, plant life -- (a living organism lacking the power of locomotion)
3. (2) plant -- (something planted secretly for discovery by another; "the police used a plant to trick the thieves"; "he claimed that the evidence against him was a plant")
4. plant -- (an actor situated in the audience whose acting is rehearsed but seems spontaneous to the audience)
Overview of verb plant
The verb plant has 6 senses (first 3 from tagged texts)
1. (8) plant, set -- (put or set (seeds, seedlings, or plants) into the ground; "Let's plant flowers in the garden")
2. (2) implant, engraft, embed, imbed, plant -- (fix or set securely or deeply; "He planted a knee in the back of his opponent"; "The dentist implanted a tooth in the gum")
3. (1) establish, found, plant, constitute, institute -- (set up or lay the groundwork for; "establish a new department")
4. plant -- (place into a river; "plant fish")
5. plant -- (place something or someone in a certain position in order to secretly observe or deceive; "Plant a spy in Moscow"; "plant bugs in the dissident's apartment")
6. plant, implant -- (put firmly in the mind; "Plant a thought in the students' minds")