Grid

From a shortening of griddle or gridiron

Full definition of grid

(plural grids)

A rectangular array of squares or rectangles of equal size, such as in a crossword puzzle.
A system for delivery of electricity, consisting of various substations, transformers and generators, connected by wire.

Die Hard (movie)You can't turn off the building from here; you have to shut down the whole grid.
2013-07-20, Out of the gloom, solar plant schemes are of little help to industry or other heavy users of electricity. Nor is solar power yet as cheap as the grid. For all that, the rapid arrival of electric light to Indian villages is long overdue. When the national grid suffers its next huge outage, as it did in July 2012 when hundreds of millions were left in the dark, look for specks of light in the villages.

(computing) A system or structure of distributed computers working mostly on a peer-to-peer basis, such structures being known as a computational grid or simply grid computing, and used mainly to solve single and complex scientific or technical problems or to process data at high speeds (as in clusters).
(cartography) A method of marking off maps into areas.
(motor racing) The pattern of starting positions of the drivers for a race.

2012, May 13, Andrew Benson, Williams's Pastor Maldonado takes landmark Spanish Grand Prix win, McLaren's Lewis Hamilton fought up from the back of the grid to eighth, with team-mate Jenson Button taking ninth.

(electronics) The third (or higher) electrode of a vacuum tube (triode or higher).