zero - noun

a quantity of no importance

a mathematical element that when added to another number yields the same number

the point on a scale from which positive or negative numerical quantities can be measured

the sight setting that will cause a projectile to hit the center of the target with no wind blowing

zero - verb

• adjust (an instrument or device) to zero value
• adjust (as by firing under test conditions) the zero of (a gun)

zero - adjective

• of or relating to the null set (a set with no members)
• indicating the absence of any or all units under consideration
• having no measurable or otherwise determinable value
• indicating an initial point or origin

zero - thesaurus

aught   cipher   cypher   nada   naught   nil   nix   nothing   nought   null   zilch   zip   zippo