zero in
Verb
Meaning
direct onto a point or target, especially by automatic navigational aids
adjust (as by firing under test conditions) the zero of (a gun)
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Examples
The only number that would ever be enough is 0. Zero pounds, zero life, size zero, double-zero, zero point. Zero in tennis is love. I finally get it.
I can zero in on subtle things because I'm holding the camera.
What works with your skin and eyes? Use that to zero in on your wardrobe.
If there is a ground zero in the cultural wars, it is Missouri, a state where pro-life groups are strong and well organized and their agenda dominates local politics.
What do we call visible light? We call it color. But the electromagnetic spectrum runs to zero in one direction and infinity in the other, so really, children, mathematically, all of light is invisible.
Gritty people train at the edge of their comfort zone. They zero in on one narrow aspect of their performance and set a stretch goal to improve it.