intransitive verb
Definition: To close or secure something, like a door, using a latch mechanism.
Example: Make sure to latch the gate before you leave.
noun
Definition: A device used to fasten a door or gate, usually consisting of a bar that fits into a slot and can be lifted to open it.
Example: She secured the door with a latch to keep it closed.
transitive verb
Definition: To close or secure something, like a door or gate, using a device that fastens it shut.
Example: Please latch the gate so the dog doesn't escape.