boom Definition in the Cambridge English Dictionary
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Definition of “boom” - English Dictionary

Definition of "boom" - American English Dictionary

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boomnoun [C]

 us   /bum/

boom noun [C] (PERIOD OF GROWTH)

social studies a ​period of ​suddeneconomicgrowth: Somehow farmers have ​survived the booms and ​busts of the past 50 ​years.

boom noun [C] (POLE)

a ​long, ​movablepole that ​holds the ​bottomedge of a ​sail and is ​attached to the mast of a ​boat In ​television and ​movie making, a boom is a ​long, ​movablepole that has a microphone (= ​device that ​recordssound) or ​camera on one end.

boom noun [C] (DEEP SOUND)

a ​deep, ​loudsound: What you ​heard was the boom of a ​rocket.

boomverb

 us   /bum/

boom verb (MAKE A DEEP SOUND)

[I/T] to make a ​deep, ​loudsound: [I] A ​voice boomed through the ​microphone.

boom verb (GROW SUDDENLY)

[I] to ​experience a ​period of ​suddeneconomicgrowth: At that ​time, Alaska was booming.
(Definition of boom from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definition of "boom" - British English Dictionary

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boomnoun

uk   us   /buːm/

boom noun (SOUND)

[C] a ​deep and ​loudhollowsound

boom noun (PERIOD OF GROWTH)

[C or U] a ​period of ​suddeneconomicgrowth, ​especially one that ​results in a lot of ​money being made: The ​insurancebusinesssuffered from a ​viciouscycle of boom and ​bust. the property boom [C usually singular] an ​increase in something , or a ​time when something ​becomes more ​popular: This ​year has ​seen a boom inbooksales.
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boom noun (BOAT)

[C] specialized sailing (on a ​boat) a ​longpole that ​moves and that has a ​sailfastened to it

boom noun (FILMING)

[C] a ​longpole with a microphone on one end that is ​held above the ​actors so that it ​recordstheirvoices but cannot be ​seen by the ​peoplewatching, used in ​television and film-making

boomverb

uk   us   /buːm/

boom verb (MAKE A SOUND)

[I or T] to make a very ​deep and ​loudhollowsound: The ​cannons boomed (out) in the ​night. He boomed (out) an ​order to the ​soldiers.

boom verb (GROW)

[I] to ​increase or ​becomesuccessful and ​produce a lot of ​money very ​quickly: often in continuous tenses The ​leisureindustry is booming.
booming
adjective uk   us   /ˈbuː.mɪŋ/
a booming voice
(Definition of boom from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)

Definition of "boom" - Business English Dictionary

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boomnoun [C or U]

uk   us   /buːm/ ECONOMICS, FINANCE
a ​period of ​increasedeconomicactivity and ​growth: A decade of market-oriented ​reforms has ​touched off an economic boom. The country as a whole will suffer the ​economiccost of the abrupt end of a decade-long boom.fuel/create/cause a boom The country's radical ​taxsystem is helping ​fuel a boom that ​rivals Asia's ​tigereconomies.experience/enjoy/undergo a boom The ​constructionindustryexperienced a boom in the ​yearsfollowing the ​war. boom in sth The boom in ​internetshareprices has ​fuelled a huge ​growth in ​stockmarketvalues around the ​world.property/housing/building boom During the ​housing boom, ​lendersissuedloans in ​recordamounts.dotcom/internet/technology boom The dot.com boom ​generated $18 ​billion in ​stockoptions and ​capitalgainstaxes for the ​state. stockmarket/​investment/​price boom consumer/​spending boom
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boomverb [I]

uk   us   /buːm/ ECONOMICS, FINANCE
to ​experience an ​increase in ​economicactivity, ​interest, or ​growth: Small ​businesses have boomed, since the ​governmentpassed a new ​law making it easier to set them up. Business is booming, ​producingincreasedearnings. With the ​economy booming, ​opportunities have never been better for ​entrepreneurs.
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(Definition of boom from the Cambridge Business English Dictionary © Cambridge University Press)
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