knock·​off | \ ˈnäk-ˌȯf How to pronounce knockoff (audio) \

Definition of knockoff

 (Entry 1 of 2)

: a copy that sells for less than the original broadly : a copy or imitation of someone or something popular

knock off

knocked off; knocking off; knocks off

Definition of knock off (Entry 2 of 2)

intransitive verb

: to stop doing something

transitive verb

1 : to do hurriedly or routinely knocked off one painting after another
2 : discontinue, stop knocked off work at five
3 : deduct knocked off a little to make the price more attractive
4a : kill knocked off two men … on mercenary grounds— Lewis Baker
b : overcome, defeat knocked off each center of rebellion
5 : rob knocked off a couple of banks
6 : to make a knockoff of : copy, imitate knocks off popular dress designs

Keep scrolling for more

Examples of knockoff in a Sentence

Noun That purse is a knockoff. Verb decided it was time to knock off telling fantastic fibs about her family background a proposal to knock 10 cents off the gasoline tax
See More
Recent Examples on the Web: Noun After paying, the seller substitutes the item for a knockoff. Andrea Sachs, Twin Cities, "10 common travel scams — and how to avoid them," 10 Aug. 2019 The latter market was vast and labyrinthine, with vendors selling everything from fresh fennel and cauliflower to knockoff designer handbags and shoes. New York Times, "The Sights and Smells of Sicily’s Second City," 11 May 2018 These days, California’s fledgling legal cannabis market is facing a similar rash of knockoff goods, such as marijuana vape pens and brownies that look like name brands but are unregulated copies that help stoke the black market for pot products. Los Angeles Times, "Newsletter: At sixes and sevens at the G-7," 26 Aug. 2019 Substituting cheap knockoffs, sometimes from foreign companies, is an old trick of the unscrupulous contractor. Kevin Krause, Dallas News, "Fort Worth defense contractor charged with felony for using cheap, substandard parts for U.S. tanks, other weapons," 19 Aug. 2019 To make those payments look legitimate on paper, Licavoli supplied the restaurants with artwork, mainly cheap knockoffs., "Don Bolles files: Were the popular Hobo Joe's coffee shops connected to the Mafia?," 30 July 2019 Much of the world viewed Indian generics as poor-quality knockoffs, a perception that Hamied had laboured against for years. Katherine Eban, Quartz India, "How an Indian tycoon fought Big Pharma to sell AIDS drugs for $1 a day," 15 July 2019 There, the best-selling women’s soccer jerseys weren’t made by Nike, but instead appeared to be knockoffs selling for a fraction of the company’s $90 to $165 price tags. Louise Matsakis, WIRED, "The World Cup Was a Prime Target for Amazon Counterfeiters," 8 July 2019 Happiness is not a designer’s usual reaction to knockoffs, Maria Grazia! Jason Kibbler; Fashion Editor: Miguel Enamorado, Harper's BAZAAR, "Maria Grazia Chiuri Talks Feminism in Fashion & the Power of Sisterhood," 30 July 2019 Recent Examples on the Web: Verb Pittsburgh has won back-to-back games, most recently knocking off the Miami Dolphins Monday night. Chris Wassel, USA TODAY Sportsbook Wire, "Colts-Steelers odds: Hot Indy slight road favorite," 1 Nov. 2019 Take this weekend, for example, when Georgia Tech knocked off Miami and Virginia Tech outlasted North Carolina in six overtimes, including college football’s first two-point conversion shootout. Matt Murschel,, "Rise of Penn State, Tua’s ankle injury among 10 things we learned during college football weekend," 20 Oct. 2019 The programs saw a glimpse of what can happen Thursday, when the Southland’s Central Arkansas knocked off Conference USA opponent Western Kentucky 35-28. Greg Luca,, "San Antonio’s Division I programs collide as UTSA, Incarnate Word meet for first time," 30 Aug. 2019 Cox got almost 12 years knocked off his sentence, and was released to a halfway house earlier this year, after having spent more than a decade in custody. Rachel Monroe, The Atlantic, "The True-Crime Writer in Cellblock B4," 16 July 2019 Jupiter’s orbit is a busy part of the solar system where the risk of being knocked off course is high, so eccentric orbits that are stable long term are unlikely. Daniel Clery, Science | AAAS, "This asteroid came from another solar system—and it’s here to stay," 21 May 2018 And if rain is in the forecast, avoid tomatoes getting knocked off their vines by picking ripe cherry tomatoes and larger tomatoes that are half ripe. Lauren Smith, House Beautiful, "Everything You Need to Know About Growing Tomatoes," 16 Feb. 2018 There's nothing fancy or sophisticated, which is why people love Cetaphil … and that’s why it is knocked off [so often]. Joe Pinsker, The Atlantic, "The Mysterious Economics of Face Wash," 6 Sep. 2019 The victory was Townsend's first-ever over a top ten player and the first time an American has knocked off the reigning Wimbledon champion at the U.S. Open since Serena Williams did it in 2008. Alaa Abdeldaiem,, "American Taylor Townsend Upsets No. 4 Simona Halep at U.S. Open," 29 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'knockoff.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of knockoff


1966, in the meaning defined above


1649, in the meaning defined at intransitive sense

Keep scrolling for more

Learn More about knockoff

Statistics for knockoff

Last Updated

25 Oct 2019

Time Traveler for knockoff

The first known use of knockoff was in 1649

See more words from the same year

Keep scrolling for more

More Definitions for knockoff


How to pronounce knock off (audio)

English Language Learners Definition of knockoff

: a cheap or inferior copy of something

More from Merriam-Webster on knockoff

Rhyming Dictionary: Words that rhyme with knockoff

Comments on knockoff

What made you want to look up knockoff? Please tell us where you read or heard it (including the quote, if possible).


the exactly right word or phrasing

Get Word of the Day daily email!

Test Your Vocabulary

Pass the Little Ribbons: A Pasta Word Quiz

  • rotelle pasta
  • Match the pasta to its meaning in English: Rotelle
Spell It

Can you spell these 10 commonly misspelled words?

Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!