spokesperson, representative, interpreter, voice - an advocate who represents someone else's policy or purpose; "the meeting was attended by spokespersons for all the major organs of government"

criticism, unfavorable judgment - disapproval expressed by pointing out faults or shortcomings; "the senator received severe criticism from his opponent"

Bofors gun - an automatic double-barreled antiaircraft gun

gun - a weapon that discharges a missile at high velocity (especially from a metal tube or barrel)

predictor - a computer for controlling antiaircraft fire that computes the position of an aircraft at the instant of a shell's arrival