intransitive verb
Definition: To bend or curve in a shape similar to a hook.
Example: The metal wire will hook easily when you bend it.
noun
Definition: A curved or bent tool or part that is used to catch, hold, or fasten something.
Example: He used a hook to hang the picture on the wall.
transitive verb
Definition: To catch or fasten something with a curved or bent object, or to cause someone to become addicted to something.
Example: He tried to hook the fish with his bait.