boom Meaning in the Cambridge English Dictionary
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Meaning of “boom” in the English Dictionary

"boom" in British English

See all translations


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.
See also

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


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.
adjective uk   us   /ˈbuː.mɪŋ/
a booming voice
(Definition of boom from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"boom" in American English

See all translations

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.


 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)

"boom" in Business English

See all translations

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 ​ boom During the ​housing boom, ​lendersissuedloans in ​recordamounts.dotcom/internet/technology boom The boom ​generated $18 ​billion in ​stockoptions and ​capitalgainstaxes for the ​state. stockmarket/​investment/​price boom consumer/​spending boom
See also

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.
See also
(Definition of boom from the Cambridge Business English Dictionary © Cambridge University Press)
What is the pronunciation of boom?