On some old keyboards there are two Caps Locks, which makes it easy to accidentally type in all caps.

After several break-ins, the apartment complex upgraded to keycard locks to improve security.

In the class, we practiced several joint locks to control resisting opponents safely.

After the break-in, the school replaced all the combination locks on the gym lockers.

The maintenance team inspected the jail locks after the storm to ensure no inmate could escape.

On many exoplanets, tidal locks can create permanent day and night sides that shape the climate and habitability.

Before casting off, the crew checked the line locks to ensure the sails were secure.

The gunsmith demonstrated how percussion locks were fitted to rifles during the 19th century.

She locks up the studio after everyone leaves.

The submarine's air locks hissed as the crew moved between compartments.