When defining a matroid, we must first specify the ground set and the rank function that applies to its subsets.

At the market, she bought fresh ground provisions to make a hearty stew.

Scientists collected samples from various ground waters to test for contaminants.

After the midseason slump, the team managed to recover most of its lost ground but still trailed the leaders.

In New Orleans, cyclists sometimes ride on the neutral ground to stay clear of car traffic, even though it's officially intended as a median strip rather than a designated bike lane.

The investigative reporter worked tirelessly to run to ground the politician's secret offshore accounts.

They used the abandoned lot as a nuisance ground, piling up old furniture and construction debris.

After months of setbacks, their carefully crafted proposal began to fall to the ground.

The elders gathered at the bora ground before dawn to prepare for the initiation ceremony.

A bootleg ground can create a dangerous shock hazard because it ties the grounding conductor to the neutral.