Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “balloon”

balloon

noun [C]  /bəˈlun/ us  
a small, thin, rubber bag that you can fill with air or another gas until it is round in shape, often used for decoration at parties or as a child’s toy A balloon is also a very large, round container filled with a gas that can rise in the air and carry people riding under it in an attached box.

balloon

verb [I]  /bəˈlun/ us  
to become larger, esp. quickly: The rumors soon ballooned into (= quickly became) a full-grown scandal.
(Definition of balloon from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of balloon?
Add Cambridge dictionaries to your browser to your website

More American English definitions for “balloon”

Definitions of “balloon” in other dictionaries

Word of the Day

dawn on sb

If a fact dawns on you, you understand it after a period of not understanding it.

Word of the Day

The language of work

by Kate Woodford,
October 15, 2014
Most of us talk about our jobs. We tell our family and friends interesting or funny things that have happened in the workplace (=room where we do our job), we describe – and sometimes complain about – our bosses and colleagues and when we meet someone for the first time, we tell

Read More 

life tracking noun

October 20, 2014
the use of one or more devices or apps to monitor health, exercise, how time is spent, etc.

Read More