zeroed in

Verb

zero in (third-person singular simple present zeroes in or zeros in, present participle zeroing in, simple past and past participle zeroed in)

1. To focus one's aim; to zoom in and center (on something).
   • The pilot zeroed in on the bunker and launched a guided missile.
2. To successfully narrow down a search (for).
   • We have zeroed in on the source of the problem.
3. To concentrate or focus one's attention (on a task).
   • One member of the check fraud team will zero in on the fingerprints.
4. (idiomatic) To converge (on).
   • At the spring sale, everyone zeroed in on the bargain clothes.