Definition of Tunneling

digging an underground passageway

Examples of Tunneling in a sentence

The runaway slaves spent months tunneling an underground passageway that would allow them to escape the plantation.  

Irritated that the gophers kept tunneling through his fields, the farmer looked for a way to stop their digging.  

A worm tunneling through the dirt popped its head out and startled the gardener planting her spring flowers.  

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