B1
used to say what the result would be if something else did not happen
Dictionary examples:
Please turn off your phone, otherwise it might start singing during class! (0.0)
Study hard for your test, otherwise your brain might go on vacation! (0.0)
Wear your lucky socks to the exam, otherwise your answers might run away! (0.0)
You really must phone home. Otherwise, your parents will start to worry. (18.9)
I'd better write it down, otherwise I'll forget it. (24.3)
Cory wants to know if we want the tickets, otherwise she'll ask Ann. (25.5)