What does ACK ACK stand for?

Anti-Aircraft Fire

This definition appears very rarely and is found in the following Acronym Finder categories:

Military and Government

Other Resources:

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Acknowledgement Packet Aircraftkiller (gaming) Amar Chitra Katha (Indian entertainment company) America's Career Kit (US Department of Labor) Amsterdam Compiler Kit Anglican Church of Kenya Anti-Capitalist Kananaskis (counter G8 movement) Arbeitsgemeinschaft Christlicher Kirchen (German: Council of Christian Churches) Assistant Cook (US DoD) Nantucket, MA, USA (Airport Code)		Anglican Church of Kenya-Directorate of Social Services Acquisition and Tracking Acknowledged/Not Acknowledged Action to Cure Kidney Cancer (New York, NY) Annalong Canoe and Kayak Club (UK) Acknowledgement Channel American Cavalier King Charles Spaniel Club, Incorporated Academy of Classical Karate-Do (Plano, TX) Acquired Cystic Kidney Disease Adult Children with Knitting Disorders (knitting group)

Samples in periodicals archive:

Anti-aircraft fire erupted over Colombo as the Liberation Tigers of Tamil Eelam (LTTE) carried out the raid, hitting and setting on fire the main tax office in the centre of the city.

Tamil Tiger planes attack Colombo

Russell was hit by anti-aircraft fire at 6000ft and his Spitfire was seen plunging out of control.

FRENCH HONOUR FOR SPITFIRE HERO RUSSELL; EXCLUSIVE REMEMBRANCE DAY ...

The American crews nicknamed Saint Nazaire "Flak City" "The Lancaster dropped its bombs but was hit by anti-aircraft fire.

WALES: Plea to find family of WWII hero

Warplanes were heard overhead as well as anti-aircraft fire.

WAR IN IRAQ: CHALLENGERS

Minutes later explosions and anti-aircraft fire are heard.

WAR IN IRAQ 2003: War plan is torn up as American forces aim to kill ...

Minutes later explosions and anti-aircraft fire were heard.

War in Iraq: Timetable: Countdown to the air attack

The US Central Command admits the US aircraft may have bombed civilians near the villages of Deh Rawud and Kakarak in Oruzgan province, north of Kandahar, as it responded to anti-aircraft fire.

AFGHANISTAN - July 1 - US 'May Have Bombed Civilians'

The crew thought they had found him when they encountered anti-aircraft fire from the ground, one source said.

Afghan fury at U.S. 'attack'