Technicians discovered that the launcher pre-fired during the test, triggering an automatic shutdown.

The old apartment building was kept warm in winter by an oil-fired boiler that hummed in the basement.

He bump-fired the rifle during the demonstration, prompting an immediate safety investigation.

During the hunting trip, his AR-15 accidentally bump fired, scattering the birds and sending everyone into cover.

During the press conference, the reporter fired away at the politician with a barrage of tough questions.

She fired off a terse email to the manager before the meeting began.

The city replaced an aging coal plant with a new gas-fired power station to reduce emissions.

Before the competition started, he dry fired several times to familiarize himself with the trigger.

The potter rejected the under-fired vase, knowing it wouldn't hold water.

He dry-fired the pistol during practice and only then realized the magazine was still empty.