plant vs cap

plant and cap both are nouns.

plant (noun)	cap (noun)
buildings for carrying on industrial labor	a tight-fitting headdress
(botany) a living organism lacking the power of locomotion	a top (as for a bottle)
an actor situated in the audience whose acting is rehearsed but seems spontaneous to the audience	a mechanical or electrical explosive device or a small amount of explosive; can be used to initiate the reaction of a disrupting explosive
something planted secretly for discovery by another	something serving as a cover or protection
	a fruiting structure resembling an umbrella or a cone that forms the top of a stalked fleshy fungus such as a mushroom
	a protective covering that is part of a plant
	an upper limit on what is allowed
	(dentistry) dental appliance consisting of an artificial crown for a broken or decayed tooth
	the upper part of a column that supports the entablature

plant (verb)	cap (verb)
put or set (seeds, seedlings, or plants) into the ground	lie at the top of
fix or set securely or deeply	restrict the number or amount of
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