(1):
(n.) Any sight or reading of the leveling staff, except the backsight; any sight or bearing taken by a compass or theodolite in a forward direction.
(2):
(n.) Muzzle sight. See Fore sight, under Fore, a.
(3):
(n.) Action in reference to the future; provident care; prudence; wise forethought.
(4):
(n.) The act or the power of foreseeing; prescience; foreknowledge.