homing in

Verb

home in (third-person singular simple present homes in, present participle homing in, simple past and past participle homed in)

1. (often) To draw close to a destination, especially using radar; to move towards a target.

   Synonyms:

   zero in

2. (often) To focus or narrow down to something; to find, draw closer or move towards, as by trial and error or a gradual seeking process.
   • He used the clues to home in on the source of the flames.

   Synonyms:

   zero in