When one klipspringer is eating, the other will assume lookout duty, helping to keep the pair aware of any predators.

But she's supposed to be on lookout duty.

Young Morrie was armed with a rifle, having come from lookout duty.

He betrays his age when he is found playing with toys while supposed to be on lookout duty.

Margo paused on lookout duty to give Cranston a puzzled gaze.

When not steering the raft or on lookout duty, the men spent their time reading, listening to music and plays, telling stories and cooking.

Only Hawkeye was up near the brow, keeping lookout duty.

He was lighting a cigar, preparatory to taking over lookout duty.

The crook's lookout duty ended six feet from the corner.

As a seaman, Fleet earned five pounds per month plus an extra 5 shillings for lookout duty.