to arrange for sb to compete in a game or competition against sb else; to compare sth with sth else in order to find things that are the same or similar
match sb / sth against / with sb / sth
to arrange for sb to compete in a game or competition against sb else
We are matched against last year's champions in the first round.
match sth against sth
to compare sth with sth else in order to find things that are the same or similar
New information is matched against existing data in the computer.
Definiciones del Oxford Advanced Learner's Dictionary, 9.ª edición