Noun

• S: (n) nothing (nothing%1:23:00::), nil (nil%1:23:00::), nix (nix%1:23:00::), nada (nada%1:23:00::), null (null%1:23:00::), aught (aught%1:23:00::), cipher (cipher%1:23:00::), cypher (cypher%1:23:00::), goose egg (goose_egg%1:23:00::), naught (naught%1:23:00::), zero (zero%1:23:02::), zilch (zilch%1:23:00::), zip (zip%1:23:00::), zippo (zippo%1:23:00::) (a quantity of no importance) "it looked like nothing I had ever seen before"; "reduced to nil all the work we had done"; "we racked up a pathetic goose egg"; "it was all for naught"; "I didn't hear zilch about it"
• S: (n) zero (zero%1:23:01::), 0 (0%1:23:00::), nought (nought%1:23:00::), cipher (cipher%1:23:01::), cypher (cypher%1:23:01::) (a mathematical element that when added to another number yields the same number)
• S: (n) zero (zero%1:09:00::), zero point (zero_point%1:09:00::) (the point on a scale from which positive or negative numerical quantities can be measured)
• S: (n) zero (zero%1:06:00::) (the sight setting that will cause a projectile to hit the center of the target with no wind blowing)

Verb

• S: (v) zero (zero%2:30:01::) (adjust (an instrument or device) to zero value)
• S: (v) zero (zero%2:30:00::), zero in (zero_in%2:30:00::) (adjust (as by firing under test conditions) the zero of (a gun)) "He zeroed in his rifle at 200 yards"

Adjective

• S: (adj) zero (zero%3:00:00:cardinal:00), 0 (0%3:00:00:cardinal:00) (indicating the absence of any or all units under consideration) "a zero score"
• S: (adj) zero (zero%3:00:00:no:00) (having no measurable or otherwise determinable value) "the goal is zero population growth"
• S: (adj) zero (zero%3:00:02:ordinal:00) (indicating an initial point or origin)
• S: (adj) zero (zero%3:01:00::) (of or relating to the null set (a set with no members))