To hang up:
1. To suspend on a hook or hanger.
Please hang up your coat in the wardrobe.
2. To end a telephone conversation abruptly.
She hung up on me!
3. To delay.
The project was hung up by budget problems.
4. To continue to have sad thoughts about something or someone.
He's still hung up on his ex-girlfriend.
To hang on:
To wait for a short period of time.
Hang on a minute, I've nearly finished!
To hang onto:
To keep in your possession.
Hang onto this map because it could be useful.
To hang in there:
To persevere.
"Hang in there John, you're nearly at the finish line!"
