Crossword clues for the word: ACKACK The word ACKACK has appeared as an answer to at least 8 crossword clues on different crossword puzzles. Crossword clues for ACKACK Showing 1 to 8 of 8 results Clue(s) "Antiaircraft fire, informally" Air-defense fire Air-raid gun Anti-aircraft fire Anti-aircraft gun's onomatopoeic nickname Antiaircraft gun Gun aimed at a bomber WWII defense