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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Antiaircraft fire:

ACKACK: Antiaircraft fire
FLAK: Antiaircraft fire
ACKACK: Antiaircraft fire, informally
ACK: When doubled, antiaircraft fire
ACK: When repeated, antiaircraft fire
ACK: Repeated, antiaircraft fire