Posted in Aviation, Business & Finance, Government & Military, Internet Slang, Pop Culture, Religion ACK stands for Amar Chitra Katha (Indian entertainment company) ACK stands for Akademickie Centrum Kultury (Polish: Academic Center for Culture; Lublin, Poland) ACK stands for Arbeitsgemeinschaft Christlicher Kirchen (German: Council of Christian Churches) ACK stands for Acknowledgement Packet ACK stands for Acknowledge Character ACK stands for Anglican Church of Kenya ACK stands for Amsterdam Compiler Kit ACK stands for Nantucket, MA, USA (Airport Code) ACK stands for Assistant Cook (US DoD) ACK stands for Accounting Control Key ACK stands for America’s Career Kit (US Department of Labor) ACK stands for Aircraftkiller (gaming) ACK stands for Acknowledged Signal (mobile radio communication system) ACK stands for Anti-Capitalist Kananaskis (counter G8 movement) ACK stands for Acknowledge/Acknowledgement/Acknowledged