zoom in on
1. Obtain a close up view of the subject with a camera, as in The TV people zoomed in on the Olympic gold medalist. [Mid-1900s]
2. Focus on, examine closely, as in The moderator got the panelists to zoom in on the health-care issue. [Second half of 1900s]
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.