n.
Pronunciation: ' züm
Function: verb
Etymology: imitative
Date: 1903
intransitive verb
1 a : to move with a loud low hum or buzz b : to go speedily : ZIP <cars zoom ing by on the highway>
2 of an airplane : 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
3 a : to focus a camera or microscope on an object using a zoom lens so that the object's apparent distance from the observer changes ― often used with in or out b : FOCUS , ZERO ― used with in <trying to zoom in on the cause of these problems>
4 : to increase sharply <retail sales zoom ed >
transitive verb : to cause to zoom