- 1earlier than the time when Do it before you forget. Did she leave a message before she went? Before I made a decision, I thought carefully about it.
- 2until It may be many years before the situation improves. It was some time before I realized the truth.
- 3used to warn or threaten someone that something bad could happen Put that away before it gets broken.
- 4(formal) rather than I'd die before I apologized!