zero in on

zero in on

1. Aim precisely at a target, as in They zeroed in on the last snipers. [c. 1940]
2. Direct one's attention to, concentrate or focus on, as in We must zero in on the exact combination of ingredients, or The whole class zeroed in on the new assignment. This usage transfers aiming a firearm to directing one's attention. [Mid-1900s]
3. Converge on, close in on, as in The children zeroed in on the electric train display. [Mid-1900s]
See also: on, zero
References in periodicals archive ?
PHOTO (1) Camera operator Anna Hernandez, left, and supe rvisor Rosie Izzo can zero in on mall activity with joy sticks.
pronounced "zero-in") is a privately held electronic design automation (EDA) company that develops tools that zero in on functional bugs in ASIC and IC designs.