Definition of zoom in
: (of a person) to adjust the lens of a camera or (of a camera) to adjust its lens so that the image seems to be bigger and closer —often + on I zoomed in on her face to show her reaction. The TV cameras zoomed in on the winner's face. —often used figuratively We're trying to zoom in on the cause of these problems before they get worse.
Word by Word Definitions
: to move with a loud low hum or buzz
: to go speedily : zip
: to climb for a short time at an angle greater than that which can be maintained in steady flight so that the machine is carried upward at the expense of stored kinetic energy
: an act or process of zooming
: a sharp upward movement
: an image created by zooming
Seen and Heard
What made you want to look up zoom in? Please tell us where you read or heard it (including the quote, if possible).