0 the time in the morning when light begins to appear and the cock (= a male chicken) crows (= makes a sound): --
She was in the habit of waking them early in the morning, at cockcrow.
Her laugh--in effect, not in resonance--was like cockcrow.
We all have to start at cockcrow in the morning.
After midnight his holiness might sleep till the morning cockcrow if he thought proper.
Crofts protested in a doddering collapse, and vanished like a ghost at cockcrow.
They were the children of superstition and imagination, and they vanished with cockcrow and daylight, leaving no trace behind in his memory.
But that was to be expected at cockcrow.
Everything cleared up till there wasn't a grain left by cockcrow.