Zero in on

Meaning

Focus precisely on a target or detail.

Usage

Used when narrowing attention to a specific idea or person.

Origin & History

Origins and dates here are approximate summaries. Many idioms have disputed or unknown origins, and not every date has been checked against a historical dictionary, so treat specific dates and stories as a starting point rather than a citation.

Military term for perfect aim in artillery or bombing runs.

Adopted from military jargon in the mid-20th century.