1. plural of lock; devices used to secure doors, containers, or other objects by preventing them from being opened without a key or combination
2. plural of lock; sections of a canal or waterway with gates at each end, used to raise or lower boats between different water levels
Usage: nautical
3. plural of lock; strands or curls of hair
Usage: often poetic or literary

Examples

• The old house had heavy brass locks on every door.
• She changed all the locks after moving into the apartment.
• The boat passed through three locks on its journey down the canal.
• Ships must wait their turn to use the locks at the Panama Canal.
• Her golden locks caught the sunlight as she walked.
• The child’s curly locks bounced as he ran across the playground.
• The burglar tried to pick the locks but failed.
• The combination locks on the lockers were difficult to open.