| Noun | 1. | zero - 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"goose egg, nada, naught, nil, nix, nothing, null, zilch, zip, aught, cypher, cipher nihil - (Latin) nil; nothing (as used by a sheriff after an unsuccessful effort to serve a writ); "nihil habet" | |
| 2. | zero - a mathematical element that when added to another number yields the same numberdigit, figure - one of the elements that collectively form a system of numbers; "0 and 1 are digits" | |
| 3. | zero - the quantity that registers a reading of zero on a scale | |
| Verb | 1. | zero - adjust (an instrument or device) to zero valueadjust, correct, set - alter or regulate so as to achieve accuracy or conform to a standard; "Adjust the clock, please"; "correct the alignment of the front wheels" | |
| 2. | zero - adjust (as by firing under test conditions) the zero of (a gun); "He zeroed in his rifle at 200 yards"adjust, correct, set - alter or regulate so as to achieve accuracy or conform to a standard; "Adjust the clock, please"; "correct the alignment of the front wheels" | |
| Adj. | 1. | zero - indicating the absence of any or all units under consideration; "a zero score"cardinal - being or denoting a numerical quantity but not order; "cardinal numbers" | |
| 2. | zero - indicating an initial point or originordinal - being or denoting a numerical order in a series; "ordinal numbers"; "held an ordinal rank of seventh" | |
| 3. | zero - of or relating to the null set (a set with no members) | |
| 4. | zero - having no measurable or otherwise determinable value; "the goal is zero population growth"no - quantifier; used with either mass nouns or plural count nouns for indicating a complete or almost complete lack or zero quantity of; "we have no bananas"; "no eggs left and no money to buy any"; "have you no decency?"; "did it with no help"; "I'll get you there in no time" | |