I saw my dog chasing a squirrel and he suddenly broke into a run.

He runs a train.

The fighter jets performed scud runs during the military exercise.

She runs for the hills whenever she sees a spider.

Running marathons runs in the family.

He runs riot at parties.

I heard that there was a nudie run at the beach yesterday.

The beach was filled with nudie runs.

He corpse runs to retrieve his lost items.

The graveyard was filled with corpse runs.