noun.
an opticalinstrument which establishes an optical line or axis for the purpose of aiming a weapon
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
a sight used for aiming a gun
noun.
a sight used for aiming a gun
Word Usage
"Markings on the advanced combat optical gunsight, which is standard issue to US special operations forces, include '' JN8: 12, '' a reference to John 8: 12: '' When Jesus spoke again to the people, he said, 'I am the light of the world."