zero

Pronunciation:  US [ˈziroʊ] UK [ˈzɪərəʊ]
  • num.Zero point; minimum; low; a minimum
  • n.Without; starting point "" numbers 0, zero
  • v.Zero; zero; target; focus
  • WebZero (zerodegree); Italy zero; Gerald
n.
v.
1.
to set a piece of equipment or control to “0” 
2.
to aim ( a weapon) at a target