hang on
To wait a moment.
Hang on. Let me check.
To hold, grasp, or grip.
Hang on to the handle so you don't drop it.
To keep; to store something for someone.
Hang on to my jacket until I get back.
To pay close attention to, or regard with (possibly obsequious) admiration.
The audience hangs on his every word.
To continually believe in something; to have faith in.
He's got a philosophy he hangs on to.
To persevere.
Just hang on and keep going; this pain won't last forever.