Grid

cuadrícula

(rectangular array of squares or rectangles of equal size, such as in a crossword puzzle)

cuadrícula

(cartography: method of marking off maps)

matriz

(rectangular array of squares or rectangles of equal size, such as in a crossword puzzle)

red

(electricity delivery system)

rejilla

(electronics: electrode of a vacuum tube)

retícula

(rectangular array of squares or rectangles of equal size, such as in a crossword puzzle)

cuadricular

(to mark with)