Definition of “boom” - English Dictionary

“boom” in English

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uk /buːm/ us /buːm/

boom noun (BOAT)

[ C ] specialized sailing (on a boat) a long pole that moves and that has a sail fastened to it


uk /buːm/ us /buːm/
adjective uk /ˈbuː.mɪŋ/ us /ˈbuː.mɪŋ/

a booming voice

(Definition of “boom” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“boom” in American English

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boomnoun [ C ]

us /bum/

boom noun [ C ] (PERIOD OF GROWTH)

social studies a period of sudden economic growth:

Somehow farmers have survived the booms and busts of the past 50 years.

boom noun [ C ] (POLE)

a long, movable pole that holds the bottom edge of a sail and is attached to the mast of a boat

In television and movie making, a boom is a long, movable pole that has a microphone (= device that records sound) or camera on one end.

boom noun [ C ] (DEEP SOUND)

a deep, loud sound:

What you heard was the boom of a rocket.


us /bum/

boom verb (MAKE A DEEP SOUND)

[ I/T ] to make a deep, loud sound:

[ I ] A voice boomed through the microphone.

boom verb (GROW SUDDENLY)

[ I ] to experience a period of sudden economic growth:

At that time, Alaska was booming.

(Definition of “boom” from the Cambridge Academic Content Dictionary © Cambridge University Press)

“boom” in Business English

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boomnoun [ C or U ]


a period of increased economic activity and growth:

A decade of market-oriented reforms has touched off an economic boom.
The country as a whole will suffer the economic cost of the abrupt end of a decade-long boom.
fuel/create/cause a boom The country's radical tax system is helping fuel a boom that rivals Asia's tiger economies.
experience/enjoy/undergo a boom The construction industry experienced a boom in the years following the war.
boom in sth The boom in internet share prices has fuelled a huge growth in stock market values around the world.
property/housing/building boom During the housing boom, lenders issued loans in record amounts.
dotcom/internet/technology boom The boom generated $18 billion in stock options and capital gains taxes for the state.

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boomverb [ I ]


to experience an increase in economic activity, interest, or growth:

Small businesses have boomed, since the government passed a new law making it easier to set them up.
Business is booming, producing increased earnings.
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)