| noun | a quantity of no importance “it looked like nothing I had ever seen before” |
| noun | a mathematical element that when added to another number yields the same number |
| noun | the point on a scale from which positive or negative numerical quantities can be measured |
| noun | the sight setting that will cause a projectile to hit the center of the target with no wind blowing |
| verb | adjust (an instrument or device) to zero value |
| verb | adjust (as by firing under test conditions) the zero of (a gun) “He zeroed in his rifle at 200 yards” |
| adjective | indicating the absence of any or all units under consideration “a zero score” |
| adjective | having no measurable or otherwise determinable value “the goal is zero population growth” |
| adjective | indicating an initial point or origin |
| adjective | of or relating to the null set (a set with no members) |
| zero | verb | adjust (an instrument or device) to zero value |
| cipher | verb | make a mathematical calculation or computation |
| cypher | verb | make a mathematical calculation or computation |
| zero | noun | a quantity of no importance |