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Synonyms

fluke

1 American  
[flook] / fluk /

noun

  1. the part of an anchor that catches in the ground, especially the flat triangular piece at the end of each arm.

  2. a barb, or the barbed head, of a harpoon, spear, arrow, or the like.

  3. either half of the triangular tail of a whale.


fluke 2 American  
[flook] / fluk /

noun

  1. an accidental advantage; stroke of good luck.

    He got the job by a fluke.

  2. an accident or chance happening.

  3. an accidentally successful stroke, as in billiards.


fluke 3 American  
[flook] / fluk /

noun

  1. any of several American flounders of the genus Paralichthys, especially P. dentatus, found in the Atlantic Ocean.

  2. any of various other flatfishes.

  3. a trematode.


fluke 1 British  
/ fluːk /

noun

  1. any parasitic flatworm, such as the blood fluke and liver fluke, of the classes Monogenea and Digenea (formerly united in a single class Trematoda )

  2. another name for flounder 2

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

fluke 2 British  
/ fluːk /

noun

  1. an accidental stroke of luck

  2. any chance happening

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. (tr) to gain, make, or hit by a fluke

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
fluke 3 British  
/ fluːk /

noun

  1. Also called: flue.  a flat bladelike projection at the end of the arm of an anchor

  2. either of the two lobes of the tail of a whale or related animal

  3. Also called: flue.  the barb or barbed head of a harpoon, arrow, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

fluke Scientific  
/ flo̅o̅k /
  1. Either of the two flattened fins of a whale's tail.

  2. See trematode


Other Word Forms

Etymology

Origin of fluke1

First recorded in 1555–65; perhaps special use of fluke 3

Origin of fluke2

First recorded in 1855–60; of obscure origin; compare English dialect fluke “a guess”

Origin of fluke3

First recorded before 900; Middle English flok, fluke, flewke, Old English flōc; cognate with Old Norse flōki; compare Old High German flah “flat” ( German flach )

Explanation

A fluke is an unexpected stroke of good luck. It was a fluke to find that fifty dollar bill on the ground, and it made you smile for the rest of the day. The word fluke was first used in 1857 in reference to a lucky shot at billiards. If something good happens to you by chance when you're not expecting it, that's a fluke. The word fluke can also be used in a negative or insulting way. For example, if your favorite sports team loses an important game, you could complain that it was just a fluke that the other team won — meaning they didn't deserve to win and somehow got lucky.

Keep Reading on Vocabulary.com

Vocabulary lists containing fluke

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Commentator Emi "Fluke" Donaldson tweeted she was "proud our community got loud".

From BBC • Feb. 23, 2022

Fluke stars in a crudo whose accents of Fresno chiles, sungold tomatoes and sheer Persian cucumbers provide pops of color and flavor.

From Washington Post • Sep. 2, 2021

The best way to describe Fluke is by sharing my go-to order: lobster, saffron, and squid-ink angel-hair pasta served in a sauce with baby spinach, pecans, and lobster cream.

From Salon • Aug. 23, 2021

He insulted Fluke following her testimony in Congress about health insurance and birth control, and the backlash was severe.

From Slate • Feb. 17, 2021

After Mr Fluke had gone to his room, Owen gratified Kezia’s curiosity by giving her an outline of his adventures.

From Owen Hartley; or, Ups and Downs A Tale of Land and Sea by Kingston, William Henry Giles

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