boom definition, meaning - what is boom in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online

Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “boom”

See all translations

boom

noun uk   us   /buːm/

boom noun (SOUND)

boom noun (PERIOD OF GROWTH)

[C or U] a period of sudden economic growth, especially one that results in a lot of money being made: The insurance business suffered from a vicious cycle 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 in book sales.
See also

boom noun (BOAT)

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

boom noun (FILMING)

[C] a long pole with a microphone on one end that is held above the actors so that it records their voices but cannot be seen by the people watching, used in television and film-making

boom

verb uk   us   /buːm/

boom verb (MAKE A SOUND)

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

boom verb (GROW)

[I] to increase or become successful and produce a lot of money very quickly: often in continuous tenses The leisure industry is booming.
booming
adjective uk   us   /ˈbuː.mɪŋ/
a booming voice
(Definition of boom from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of boom?
Add Cambridge dictionaries to your browser to your website

Definitions of “boom” in other dictionaries

Word of the Day

a game in hand

if a sports team has a game in hand over other teams in a competition, it still has another game to play in which it can gain points

Word of the Day

What’s All The Commotion About? (Words to describe sounds)

by Kate Woodford,
May 20, 2015
​​​ In this post we look at a range of words and phrases that we use to describe noise and the absence of noise. Starting with complete quiet, we sometimes use the noun hush to describe silence: A hush fell over the room as the bride walked in./There was a deathly hush (=complete

Read More 

ancestral health noun

May 25, 2015
diet based on the presumed diet of our Palaeolithic ancestors ‘Ancestral health,’ to use a term popular among Paleo followers, has gone mass.

Read More