plant-n; 3 Senses

Sense Number 1: a building, or group of buildings, for industrial activity

Commentary: PLANT[+concrete][-animate][+artifact]

There is a new auto plant just outside the city limits.
That electronics company owns six plants.
The plant has new security measures in place.

WordNet 3.0 Sense Numbers: 1

Sense Number 2: living photosynthesizing organism

Commentary: PLANT[+living][-locomotion]

Mary forgot to water the plants.
This plant is hardy through zone 9.
I'm thinking of either a plant, animal or mineral.

WordNet 3.0 Sense Numbers: 2

Sense Number 3: a contrivance or stratagem

Commentary: PLANT[+purposive][+concrete]

He claimed the evidence against him was a plant.
John agreed to be a plant in the audience for the magician.
The unmailed letter was a plant for a later scene in the film.

WordNet 3.0 Sense Numbers: 4, 3