Magically, an empty cab stopped directly in front of me.

She said four empty cabs had already refused to stop.

I found an empty cab and gave the driver, who appeared to be from India, the address.

A few minutes that seemed like hours passed by before more empty cabs began returning.

They were lucky, and found an empty cab waiting at the rank.

We picked up the empty cab a dozen blocks away.

An empty cab was already there, parked in a corner ahead of the line.

He stepped to the sidewalk just as an empty cab went by.

They walked along the curb, watching for an empty cab.

There was too much risk, also, of finding an empty cab.