convoy vs collection

convoy and collection both are nouns.

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

As nouns, collection is a hypernym of convoy; that is, collection is a word with a broader meaning than convoy:

Other hypernyms of convoy include accumulation, aggregation, assemblage.

convoy (noun)	collection (noun)
the act of escorting while in transit	the act of gathering something together
a procession of land vehicles traveling together	a publication containing a variety of works
a collection of merchant ships with an escort of warships	request for a sum of money
	several things grouped together or considered as a whole

convoy (verb)	collection (verb)
escort in transit