match up verb3 •To be similar or the same.Unfortunately, none of the numbers on my lottery ticket matched up with the ones drawn. •To put together, or in a pair.After matching up all the socks in the draw, I threw away those without a pair. •To matchmake; to set up a romantic meeting between two people.She thought James asked her on a date because he was interested in her, but it turned out he wanted to match her up with his brother. formsmatched up · matching up · matches up