ack-ack /akˈak/


I. noun [ mass noun] [usu. as modifier]

‹informal› anti-aircraft gunfire

a quick burst of ack-ack fire.
– origin signallers’ name for the letters AA; ack for A was replaced in military use by able in 1942.

Add Comment

By Oxford


Get in touch

Quickly communicate covalent niche markets for maintainable sources. Collaboratively harness resource sucking experiences whereas cost effective meta-services.