plant vs alder blight

plant and alder blight both are nouns.

plant (noun)	alder blight (noun)
buildings for carrying on industrial labor	a disease of alders caused by the woolly alder aphid (a plant louse)
(botany) a living organism lacking the power of locomotion
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)	alder blight (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