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			| 1.
								the sound of knocking (as on a door or in an engine or bearing) 2.
								negative criticism
 3.
								a vigorous blow
 the sudden knock floored him
 4.
								a bad experience
 the school of hard knocks
 5.
								the act of hitting vigorously
 
 'knock' - used as a verb
 6.
								deliver a sharp blow or push
 He knocked the glass clear across the room
 7.
								rap with the knuckles
 knock on the door
 8.
								knock against with force or violence
 9.
								make light, repeated taps on a surface
 10.
								sound like a car engine that is firing too early
 11.
								find fault with; express criticism of; point out real or perceived flaws
 Don't knock the food--it's free
 
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			| derived forms
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			| 1. Knock / Plural knocks
 2. Knock / Past
 knocked
 3. Knock / Third Person
 knocks
 4. Knock / Present Participle
 knocking
 
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