zero
01
ゼロ, 無
having no measurable or otherwise determinable value
02
ゼロ, 零
indicating an initial point or origin
03
ゼロ, 空の
of or relating to the null set (a set with no members)
Zero
01
ゼロ, ゼロ調整
the sight setting that will cause a projectile to hit the center of the target with no wind blowing
02
a person regarded as completely insignificant or worthless
Offensive
Slang
例
After the scandal, he's a total zero in this town – nobody will hire him.
to zero
01
ゼロを調整する, ゼロを合わせる
adjust (as by firing under test conditions) the zero of (a gun)
02
ゼロに調整する, ゼロに設定する
adjust (an instrument or device) to zero value
