Definition of "designator" [des•ig•na•tor]

• A person who, or term that, designates (noun)
• An officer who assigned to each his rank and place in public shows and ceremonies. (noun)

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• "It's a natural byproduct of the release format, Hurt explained, wherein teams are required to film segments of the battle along with a "designator" - an item provided to the boats just before heading out, to verify that the action occurred during the Friday-Saturday tournament."
• "In the gulf, the F-117A has been used mostly as a spotter plane, circling on high, training a laser "designator" on the target."
• "Vice Admiral Joshua Painter was the current Assistant Chief of Naval Operations for Air Warfare, known to insiders by his "designator," OP-05, or just "oh-five.""