What's "keep up with" mean?

Native speaker’s answer
Rebecca
To "keep up with" someone or something means to go or progress at the same rate as them or to stay even with them. It can also mean staying informed about something or someone. Ex: Usually, tech companies are good at keeping up with each other. Ex: I struggled to keep up with Rachel in the race, so she won! Ex: I like to keep up with the new TV shows. => stay informed and watch something.