|Origin:||zéro, from Arabic sifr 'empty, nothing'|
the number 0 [= nought British English]
Make X greater than or equal to zero.
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.
a temperature of 0° on the Celsius or Fahrenheit scale
above/below zero➔ absolute zero, sub-zero
It was five degrees below zero last night.
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.