出典:Wiktionary
出典:『Wiktionary』 (2024/12/24 21:38 UTC 版)
The phrase possibly comes from adjusting a sighting mechanism of a firearm to minimise the discrepancy between where the sight points and where a bullet lands on a target.
Another possible source is the Cartesian coordinate system in mathematics. In the coordinate system, points are defined relative to an origin (point of reference) labeled O, which has an (x,y) coordinate pair of (0,0).
zero in (third-person singular simple present zeroes in or zeros in, present participle zeroing in, simple past and past participle zeroed in)
Often, though not exclusively, in the combination "zero in on (something)".