The factory's safety interlocks prevented the machine from starting until the guard was in place.

The safety mechanism interlocks the machine when a door is opened.

The city's skyline was dominated by interlocking towers that seemed to defy gravity.

After the freight train passed, the dispatcher climbed the interlocking tower to inspect the switch controls.

Many states require ignition interlocks for drivers convicted of DUI to prevent alcohol-impaired driving.

After his DUI conviction, the court ordered him to install an ignition interlock on his car.