| Noun | 1. | reference point - an indicator that orients you generally; "it is used as a reference for comparing the heating and the electrical energy involved"bench mark, benchmark - a surveyor's mark on a permanent object of predetermined position and elevation used as a reference point landmark - a mark showing the boundary of a piece of land lubber line, lubber's line, lubber's mark, lubber's point - a fixed line on a ship's compass indicating its heading white line - a white stripe in the middle of a road to mark traffic lanes indicator - a signal for attracting attention buoy - bright-colored; a float attached by rope to the seabed to mark channels in a harbor or underwater hazards |