There are 2 definitions of barn in English:

barn1

Syllabification: barn
Pronunciation: /bärn
 
/

noun

  • 1A large farm building used for storing grain, hay, or straw or for housing livestock.
    More example sentences
    • Also within the wall would have been a well, latrines, a chapel, workshops, barns, pens for livestock, hen houses and perhaps other outbuildings.
    • On the way to the working farm, they marvel at the bucolic scene - rolling hills with acres of corn and soybean fields, the green pastures interspersed with barns and farm houses.
    • Clean livestock barns have fewer fly problems.
    Synonyms
    outbuilding, shed, cowshed, shelter; bank barn; stable, stall, outhouse
    archaic grange, garner
  • 1.1North American A large shed used for storing vehicles.
    More example sentences
    • One barn featured rapid transit cars that were awaiting some restoration.
    • ALL Santa wants for Christmas is a new barn, shed or stable for his sleigh.
    • In the car barn we saw numbers 2002 through 6 in various stages of build.
  • 1.2A large and unattractive building: moved into that barn of a house
    More example sentences
    • It was a great barn of a place with a cement floor, fibreboard partitions and windows only at the extreme river end.
    • If you're not enlightened, Savemart is this big second-hand barn of a store nestled in the industrial sprawl of northern Te Rapa.
    • He had a whole room of metal-working equipment, a room full of wood-working equipment, and this huge barn of a room for electronics.

Origin

Old English bern, berern, from bere 'barley' + ern, ærn 'house'.

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

There are 2 definitions of barn in English:

barn2

Syllabification: barn
Pronunciation: /
 
bärn/
(abbreviation: b)

noun

Physics
  • A unit of area, 10-28 square meters, used especially in particle physics.
    More example sentences
    • While the barn is not an SI unit, it is accepted (although discouraged) for use with the SI.
    • The barn is typically used to measure the cross section for nuclear reactions.
    • Cross-sections are measured in barns, 10-28 m2.

Origin

1940s: apparently from the phrase as big as a barn door.

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