an obvious change of public opinion or political sentiment that occurs without leadership or overt expression; "there was a ground swell of antiwar sentiment"
at or in the front; "I see the lights of a town ahead"; "the road ahead is foggy"; "staring straight ahead"; "we couldn't see over the heads of the people in front"; "with the cross of Jesus marching on before"
ahead of time; in anticipation; "when you pay ahead (or in advance) you receive a discount"; "We like to plan ahead"; "should have made reservations beforehand"
in a forward direction; "go ahead"; "the train moved ahead slowly"; "the boat lurched ahead"; "moved onward into the forest"; "they went slowly forward in the mud"
leading or ahead in a competition; "the horse was three lengths ahead going into the home stretch"; "ahead by two pawns"; "our candidate is in the lead in the polls"; "way out front in the race"; "the advertising campaign put them out front in sales"
to a different or a more advanced time (meaning advanced either toward the present or toward the future); "moved the appointment ahead from Tuesday to Monday"; "pushed the deadline ahead from Tuesday to Wednesday"
to a more advanced or advantageous position; "a young man sure to get ahead"; "pushing talented students ahead"
toward the future; forward in time; "I like to look ahead in imagination to what the future may bring"; "I look forward to seeing you"
(mathematics) a set of entries in a square matrix running diagonally either from the upper left to lower right entry or running from the upper right to lower left entry
an oblique line of squares of the same color on a checkerboard; "the bishop moves on the diagonals"
a line or cut across a fabric that is not at right angles to a side of the fabric
(geometry) a straight line connecting any two vertices of a polygon that are not adjacent
at an angle; especially connecting two nonadjacent corners of a plane figure or any two corners of a solid that are not in the same face; "a diagonal line across the page"