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Dictionary definition for: Zero

1. (n) 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"

2. (v) adjust (an instrument or device) to zero value

3. (s) indicating the absence of any or all units under consideration; "a zero score"

4. (n) a mathematical element that when added to another number yields the same number

5. (v) adjust (as by firing under test conditions) the zero of (a gun) "He zeroed in his rifle at 200 yards"

6. (s) indicating an initial point or origin

7. (n) the quantity that registers a reading of zero on a scale

8. (a) of or relating to the null set (a set with no members)

WordNet 2.1 Copyright Princeton University. All rights reserved.