Z

Phrasal Verb	Definition	Example
zero in on +	discover, pinpoint	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.
zone out	stop paying attention	He zoned out during class.
zonk out	fall asleep	Jill was so exhausted after taking the TOEFL test that she zonked out before dinner.
zoom in	focus	You need a telephoto lens to zoom in.
zoom in on +	focus on something, pinpoint	She zoomed in on his face while taking the picture.