|zero in on +
|I think I have zeroed in on what has been
causing the problem.
|zip around +
|move quickly from place to place
|I zipped around town after work today.
|stop paying attention
|He zoned out during class.
|Jill was so exhausted after taking the
TOEFL test that she zonked out before dinner.
|You need a telephoto lens to zoom in.
|zoom in on +
|focus on something, pinpoint
|She zoomed in on his face while taking