The field survey team ground truthed the new habitat maps to ensure accuracy.

The director unrolled the ground plan to explain where each prop and actor would be positioned during the performance.

The director consulted the ground-plan carefully before arranging the props.

The architect submitted the revised ground-plans to the planning committee yesterday.

The architect reviewed the ground plans before meeting with the construction team.

The garden's shaded corners were carpeted with ground-ivies, their tiny purple flowers brightening the soil.

A ground hog burrowed under the porch, surprising everyone in the neighborhood.

The ground-hog darted across the meadow before disappearing into its burrow.

To shift one's ground after making a public promise undermined the leader's credibility.

The research team broke new ground with their discovery of a biodegradable battery.