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English definition of “zero”

zero

number     /ˈzɪə.rəʊ/ US  /ˈzɪr.oʊ/ (plural zeros)
A2 [C or U] (the number ) 0; nothing: Five, four, three, two, one, zero. The number one million is written with a one and six zeros . Heavy rain has reduced visibility almost to zero (= its lowest point ).Cardinal numbers, including nought and zero B1 [U] on a set of numbers for comparing temperature in degrees Celsius , the level of temperature at which water freezes : The temperature is expected to drop to ten degrees below zero tonight .ColdSnow and iceMeasurements of temperature
(Definition of zero number from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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