How to pronounce knock:
Example: "The knocking grew louder"
Example: "The school of hard knocks"
Example: "He knocked the glass clear across the room"
Example: "Knock on the door"
Example: "My car bumped into the tree"
Example: "He was tapping his fingers on the table impatiently"
Example: "The car pinged when i put in low-octane gasoline"
Example: "The paper criticized the new movie"