Meanings of ack-ack in English

This ack-ack was small beer by comparison, little more than a thin splatter.

Ng laughs sharply, like distant ack-ack, and the van almost swerves off the road.

Beyond the ack-ack, they heard artillery fire, their own, some way further to the west.

Janie with her clever hand on the ack-ack prototype.

Engine noise, like barrages from ack-ack guns, rattled back to us from the concrete walls.

And there's ack-ack fire from a plane overhead.

Is this an ack-ack station or is it a museum?)

It's the answering service!" And then Wyeth and his ack-ack windup cry-"Forgetit!" It comes out disgusted, like a slap.

Plasma shots rose up like ack-ack fire and turned four of them in a row into screaming torches while oily smoke billowed.

Pale puff-balls of bursting ack-ack fire mottled the sky to the northeast, heralding the arrival of a vast and heavily escorted formation of 88s.

His arms and his fists were like those old ack-ack guns, rat-a-tat-tat, slamming back and forth, blood flying everywheres, and he just kept charging.

Lots of ack-ack crews used boys as young as 12 for spotters, andall the kids developed uncannily keen ears for the sound of different motors.