Synonym: bang, beat, hammer, hit, jab, pound, punch, rap, strike. Similar words: knock out, knock off, knock down, know, on occasion, sock, dock, know about. Meaning: [nɑk /nɒk] 
n. 1. the sound of knocking (as on a door or in an engine or bearing) 2. negative criticism 3. a vigorous blow 4. a bad experience 5. the act of hitting vigorously. v. 1. deliver a sharp blow or push :"He knocked the glass clear across the room" 2. rap with the knuckles 3. knock against with force or violence 4. make light, repeated taps on a surface 5. sound like a car engine that is firing too early 6. find fault with; express criticism of; point out real or perceived flaws.
n. 1. the sound of knocking (as on a door or in an engine or bearing) 2. negative criticism 3. a vigorous blow 4. a bad experience 5. the act of hitting vigorously. v. 1. deliver a sharp blow or push :"He knocked the glass clear across the room" 2. rap with the knuckles 3. knock against with force or violence 4. make light, repeated taps on a surface 5. sound like a car engine that is firing too early 6. find fault with; express criticism of; point out real or perceived flaws. 
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(31) If you two boys don't stop quarrelling immediately, I'll knock your heads together.
(32) I'm sorry to have to knock you up in the middle of the night.
(33) It won't take me more than five minutes to knock a snack together.
(34) Without pausing to knock, she opened the door.
(35) I wish he'd knock instead of just barging in.
(36) You can't knock me off—I've done nothing!
(37) Don't knock it unless you can do better.
(38) Knock down the machine before shipping.
(39) Her husband used to knock her about.
(40) You've had a nasty knock on the head.
(41) What time do you knock off ( work )?
(42) The headmaster is trying to knock off every objection.
(43) Do you want to knock off early today?
(44) A loud knock at the door made her start.
(45) My health compels me to knock off work.
(46) He was planning to knock off the library.
(47) Let's knock on for another half an hour.
(48) We refuse to knock under to any difficulties.
(49) I managed to knock his price/him down .
(50) You look fabulous-you'll knock 'em dead tonight.
(51) I was wakened by a knock at the door.
(52) There was a loud knock at the door.
(53) Mind you don't knock that glass over.
(54) She took a bad knock when her parents died.
(55) How much can you knock back at a time?
(56) When do you usually knock off for lunch?
(56) Sentencedict.com try its best to gather and make good sentences.
(57) If you take both dresses, I'll knock ￡2 off.
(58) I managed to knock him down to $400.
(59) Mind you don't knock your head .
(60) Sorry, did I knock your elbow?
More similar words: knock out, knock off, knock down, know, on occasion, sock, dock, know about, well known, well-known, shock, block, stock, hockey, rocket, cocked, acknowledge.