plant vs coca

plant and coca both are nouns.

plant (noun)	coca (noun)
buildings for carrying on industrial labor	a South American shrub whose leaves are chewed by natives of the Andes; a source of cocaine
(botany) a living organism lacking the power of locomotion	dried leaves of the coca plant (and related plants that also contain cocaine); chewed by Andean people for their stimulating effect
an actor situated in the audience whose acting is rehearsed but seems spontaneous to the audience
something planted secretly for discovery by another

plant (verb)	coca (verb)
put or set (seeds, seedlings, or plants) into the ground
fix or set securely or deeply
set up or lay the groundwork for
place into a river
place something or someone in a certain position in order to secretly observe or deceive
put firmly in the mind