plant life vs cap

plant life and cap both are nouns.

Word	Noun	Adjective	Verb	Adverb
plant life	Yes	No	No	No
cap	Yes	No	Yes	No

plant life (noun)	cap (noun)
(botany) a living organism lacking the power of locomotion	a tight-fitting headdress
	the upper part of a column that supports the entablature
	a top (as for a bottle)
	something serving as a cover or protection
	(dentistry) dental appliance consisting of an artificial crown for a broken or decayed tooth
	a mechanical or electrical explosive device or a small amount of explosive; can be used to initiate the reaction of a disrupting explosive
	an upper limit on what is allowed
	a protective covering that is part of a plant
	a fruiting structure resembling an umbrella or a cone that forms the top of a stalked fleshy fungus such as a mushroom

plant life (verb)	cap (verb)
	restrict the number or amount of
	lie at the top of