ack-ack ack-ack

Definition(s):

  • (n) artillery designed to shoot upward at airplanes

Usage(s):

  1. Here's heavy ack-ack now loud firing and muffled shouts of crew'.
  2. The Italians on the shore had depressed their ack-ack guns.
  3. The Indian air force had knocked out the Pakistanis' runways and, out side of the limited range of ack-ack guns, Indian planes could fly as freely as if they were at an air show.
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effusion effusion
/ɪ ˈfju ʒən/