1. Call off: to tell an animal or person to stop attacking or chasing someone

I asked the policeman to call off his dog as my girlfriend was getting scared.

2. call at (a place): of a boat or ship to stop at (a place) briefly

The ship called at the port.

3. call something down (on someone): to pray for something bad to happen to someone

The beggar called down a curse on the rich man who abused him.

4. call for (someone or something): to go to a place to get (someone or something)

I’ll call for you (at your house) after dinner.

5. call (something) in or call in (something): to go in somewhere to make a visit – often + on

I called in on an old friend while I was in London.