convoy vs aggregation

convoy and aggregation both are nouns.

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

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

Other hypernyms of convoy include accumulation, assemblage, collection.

convoy (noun)	aggregation (noun)
the act of escorting while in transit	the act of gathering something together
a procession of land vehicles traveling together	several things grouped together or considered as a whole
a collection of merchant ships with an escort of warships

convoy (verb)	aggregation (verb)
escort in transit