I couldn't open my old suitcase because the permutation lock had rusted shut.

The engineers inspected the old lock-weirs to assess damage after the storm.

The engineer inspected the lock-weir to ensure it would safely discharge excess water into the lock chamber during heavy rains.

The recent lock outs at the factories have disrupted supply chains across the region.

The repeated lock-outs last year forced both sides back to the negotiating table.

During the forgotten era, lock hospitals treated people with contagious diseases under strict quarantine.

The medieval town's lock hospital stood on the outskirts, its stone walls enclosing patients shunned by the rest of the village.

The engineer inspected the tide locks at dawn before the storm reached the coast.

The carpenter adjusted the side-locks on the cabinet doors to ensure they closed evenly.

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