latch

noun
1
a small metal bar that is used to fasten a door or a gate. You raise it to open the door and drop it to fasten it.
چفت, بست, کلون
2
a type of lock on a door that needs a key to open it from the outside
قفل
She listened for his key in the latch.
verb
1
to fasten something with a latch
چفت کردن