Examples of use of hone in
1. In 2000, after finishing her Ph.D. she decided she wanted to hone in on more earth–bound uses for lasers.
2. All of this will help them hone in on an origin point for the explosion, he said.
3. "He said that he would hone in over the next few weeks on a handful of nominees.
4. For millions, it has become an obsession – using Google Earth to examine our homes, spy on the neighbours and hone in on far–away sights.
5. Women tend to hone in on ruggedly handsome men in the unconscious belief they will provide them with the healthiest children.