1 pattern of lines that cross each other
ADJ. rectangular, square | regular
GRID + NOUN line, pattern, square, system The artist drew a set of grid lines over the area to be painted.
2 system of squares drawn on a map
GRID + NOUN line, reference, square The grid lines on the map run north-south. An Ordnance Survey grid reference gives the position of a place to within 100 metres.
3 system of electric cables
ADJ. national | electricity
GRID + NOUN system Power can be fed from wind generators into the electricity grid system.