There are 3 definitions of fluke in English:

fluke1

Syllabification: fluke
Pronunciation: /flo͞ok
 
/

noun

  • Unlikely chance occurrence, especially a surprising piece of luck: their triumph was no fluke
    More example sentences
    • Contrary to what Bettman might think, a fluke occurrence can not be used as precedent: after all, a fluke occurrence is by definition rare.
    • We would say, in fact, that B's failure to castle was a fluke, bad luck with the random number generator.
    • Luck, in the sense of a fluke occurrence, had nothing to do with it.
    Synonyms
    chance, coincidence, accident, twist of fate; piece of luck, stroke of good luck/fortune, serendipity

Origin

mid 19th century (originally a term in games such as billiards denoting a lucky stroke): perhaps a dialect word.

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Word of the day coloratura
Pronunciation: ˌkələrəˈto͝orə
noun
elaborate ornamentation of a vocal melody

There are 3 definitions of fluke in English:

fluke2

Syllabification: fluke

noun

  • 1A parasitic flatworm that typically has suckers and hooks for attachment to the host. Some species are of veterinary or medical importance.
    More example sentences
    • In Asia the species is known to host parasitic lung flukes, which can infect humans if the crabs are eaten undercooked.
    • The medically important flatworms are further divided into the flukes and tapeworms (Cestoda).
    • Primary common bile duct stones are more common in Asian populations because of the increased prevalence of flukes and parasitic infections, such as clonorchiasis, fascioliasis and ascariasis.
  • 2chiefly • dialect or North American A flatfish, especially a flounder.
    More example sentences
    • With flounder, sole, fluke, turbot, halibut, bass, trout, John Dory or orange roughy, we must tread lightly, especially with regard to bitterness.
    • Seafood specialties like halibut, fluke, and grouper and the unique world of micro greens have done much to influence his opinion of American food culture.
    • The fluke, a flatfish similar to flounder, scratched that special itch for me.

Origin

Old English flōc ( (sense 2)), of Germanic origin; related to German flach 'flat'.

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There are 3 definitions of fluke in English:

fluke3

Syllabification: fluke
Pronunciation: /
 
flo͞ok/

noun

  • 1A broad triangular plate on the arm of an anchor.
    More example sentences
    • Hanging from the centre of the dome is an anchor shape with red and green lanterns at the end of the anchor flukes.
    • On Vanderlin, rubbish left by Asiatics: a wooden anchor with one fluke, three boat rudders of violet wood, remains of blue cotton trousers.
    • At Zephyros, in 30m of water, the flukes of a sizeable anchor are visible, the chain running along the base of a cliff which rises spectacularly some 10m off the seabed.
  • 1.1Either of the lobes of a whale’s tail.
    More example sentences
    • And often the tail fluke of a whale or the back fin of a dolphin will show as a dark patch against the paler surface of the sea.
    • He said the sculpture would depict a whale with its flukes, or tail, raised in the air but could not say what size the sculpture would be.
    • Calambokidis' team has photographed and recognized around 1,500 blue whales by tail fluke and back markings.

Origin

mid 16th century: perhaps from fluke2 (because of the shape).

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