until
untilpreposition
UK/ənˈtɪl/US/ənˈtɪl/
UP TO
A1up to a particular time, and then stopping
- The shop is open until ten o'clock.
- I'll be away until Friday.
NOT BEFORE
B1not until means not before a particular time
- He didn't get home until midnight.
untilconjunction
UK/ənˈtɪl/US/ənˈtɪl/
A2up to the time when something happens
- Wait here until I come back.
- Keep going until you see the station.