Longman Dictionary of Contemporary English homepage

Date: 1600-1700
Language: French
Origin: zéro, from Arabic sifr 'empty, nothing'

zero

1 number
     
Related topics: Numbers, Measurement, Temperature
ze‧ro1 plural zeros or zeroes
1HMN the number 0 [= nought British English]
Make X greater than or equal to zero.
2TMHMN the point between + and - on a scale for measuring something, or the lowest point on a scale that shows how much there is left of something:
The petrol gauge was already at zero.
3TMT a temperature of 0° on the Celsius or Fahrenheit scale
above/below zero
It was five degrees below zero last night.
absolute zero, sub-zero
4 none at all, or the lowest possible amount
somebody's chances are zero (=they have no chance of success)
Mike's chances of winning are virtually zero.
From 1971 to 1976 West Vancouver experienced zero population growth.

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