protect vs convoy

protect is not a noun while convoy is a noun.

Word	Noun	Adjective	Verb	Adverb
protect	No	No	Yes	No
convoy	Yes	No	Yes	No

protect (noun)	convoy (noun)
	the act of escorting while in transit
	a procession of land vehicles traveling together
	a collection of merchant ships with an escort of warships

protect (verb)	convoy (verb)
shield from danger, injury, destruction, or damage	escort in transit
use tariffs to favor domestic industry