latch

• 一种用于闩门、闩窗或锁门的装置，通常由可滑入槽孔的插销或门闩组成。也可指一种弹簧锁，从外面用钥匙开启。

A device used to fasten a door, gate, or window, typically consisting of a bar or bolt that fits into a notch or groove. It can also refer to a spring-loaded lock that opens from the outside with a key.

1. Spring-loaded door lockB1formal

   A type of lock that uses a spring mechanism and can typically be opened from the outside only with a key.

   弹簧锁

   • He turned the key and the latch clicked open.
   • The front door has a sturdy latch that requires a key from outside.
   • She forgot her keys and couldn't release the latch.

   同义词night latch

2. Fastening bar for a door or gateB1formal

   A simple fastening device consisting of a bar that can be lowered or slid into a groove to secure a door or gate.

   门闩

   • The old wooden gate was secured with a heavy iron latch.
   • He lifted the latch and pushed the door open.
   • The latch on the garden gate needs oiling because it squeaks.

   同义词boltcatchclaspfastenerhasp

• 用闩或锁扣把某物固定或关上的动作，比喻义指紧紧依附或抓住某物。

A verb used to indicate the act of fastening or closing something with a latch, or metaphorically to attach or cling to something.

1. Fasten with a latchB1formal

   To close or secure something using a latch mechanism.

   用门闩闩上

   • He latched the gate before leaving the garden.
   • Make sure you latch the door properly when you go to bed.
   • She latched the window to keep it from rattling in the wind.

   同义词boltfastenlocksecure

   反义词openunfasten

短语动词变体latch on