zero[Anglais]

adjectif satellite
1 : having no measurable or otherwise determinable value; "the goal is zero population growth"
nom
1 : the sight setting that will cause a projectile to hit the center of the target with no wind blowing
adjectif
1 : of or relating to the null set (a set with no members)
verbe
1 : adjust (as by firing under test conditions) the zero of (a gun)