an informal meeting or conversation in which people find out or are briefed about things that have happened since they last met or spoke

it's the perfect destination for a coffee, some cake, and a catch-up

an act of catching up or matching someone or something in a particular activity

the country's catch-up phase of economic development

a service offered by television and radio broadcasters allowing users to watch or listen to recently broadcast programmes

when I got home I watched the show on catch-up