sub-level

[ suhb-lev-uhl ]

noun

, Mining.

1. a drift, dug through ore, into which overlying material, especially from an upper layer of ore, is caved.

Example Sentences

While attempting to patch a leak on a sub-level of the building this past June, a contractor mistakenly drilled into electrical wiring, causing an explosion “which threw the contractor backwards, several feet through the air,” knocked out the power for some residents, and shut down the air-conditioning system.

From New York Times

The Fulton, a new family-run events venue and caterer, signed a five-year lease for the 2,300-square-foot sub-level with its own private entrance in this two-story building.

From New York Times

I imagine he’s explaining to his alien colleague the annual benefits of an Amazon Prime membership, while in a deeper sub-level of his mind wondering, as many great intellectuals have before him, how long it will be until he once again lock eyes with a camera and eat.

From The Verge

Stonegate also intends to downsize parking spaces on the site, construct a sub-level parking garage and improve landscaping in the area.

From Washington Times

Or, rely on tags instead for organizing by that sub-level of detail, as explained below.

From Time