run away *
run off * , also: run for it informal

He might meet another woman and run off with her.

I had to run them off and then go in after him.

At first, he had been sure they would run off to get help.

He put a hand out to stop her before she could run off.

He knows better than to run off on his own.

He kept me with him all the time, and I never got a chance to run off.

And I don't want you running off to do anything on your own, either.

They finally decided to run off together, find a small world of their own.

She was running off to another part of the house.

Can't take them to court for running off with your money and not doing the job.