Definition of grid reference in English:

grid reference


  • A map reference indicating a location in terms of a series of vertical and horizontal grid lines identified by numbers or letters.

    ‘on the Ordnance Survey map, grid reference SP 508069’
    • ‘Surveyors are asked to report any sightings of the ladybird, along with its location and, if possible, a grid reference or postcode.’
    • ‘The operator can punch an OS grid reference straight into his/her computer terminal and pinpoint your location.’
    • ‘Greenpeace campaigners recently destroyed trial fields and the government has issued only a six-figure grid reference to identify the fields in which the trials were taking place.’
    • ‘A grid reference is given to every postcode and when police issue an alert it will be possible to pinpoint the distribution area.’
    • ‘The mother's address on the child's birth certificate was postcoded and given a geographical grid reference.’