Definition

Noun: A night latch is a type of door lock that is operated by a knob or handle on the inside and a key on the outside. It is typically a simple, supplementary lock, often used for additional security on an interior door or as a secondary lock on an exterior door.

Usage

A night latch is a lock mechanism. It is installed on a door. * It is operated from the inside by turning a knob or handle. * It is operated from the outside by using a key. * It is often used as an additional security measure.

Examples

• Noun:
  • For extra safety, they installed a night latch on the bedroom door.
  • The old front door had a heavy night latch that required a large brass key.
  • Remember to engage the night latch before going to bed.

Advanced Usage

• "To be on the night latch": This phrase describes the state of the door being secured by the night latch but not fully deadlocked, often allowing it to be opened from the inside without a key. It implies a basic level of security.
  • I left the door on the night latch so you can get in if you come home late.

Variants and Related Words

• Latch (noun): A simple fastening device with a bar that falls into a catch. A night latch is a specific type of lockable latch.
• Deadbolt (noun): A different, often more secure, type of lock that is operated by a key or thumb-turn and slides a solid metal bolt into the door frame.
• Yale lock (noun): A common brand name for a type of night latch, often used generically.

Synonyms

• Spring latch: A latch that uses a spring to hold the bolt in place.
• Keyed latch: A latch that can be locked with a key from the outside.

Related Phrases

• To throw the latch: To engage or fasten the latch.
  • She threw the latch to lock the garden gate.
• To latch the door: To close and fasten the door with a latch.
  • Please latch the door behind you.

Noun

1. doorlock operated by a knob on the inside and a key on the outside