Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “balloon”

balloon

noun [C] uk   /bəˈluːn/ us  
A2 a small, very thin rubber bag that you blow air into or fill with a light gas until it is round in shape, used for decoration at parties or as a children's toy: We tied balloons and streamers to the ceiling ready for the party. (also hot-air balloon) a very large balloon that is filled with hot air or gas and can carry people in a basket (= open container ) hanging under it: People first flew in a balloon in 1783. a speech bubble

balloon

verb [I] uk   /bəˈluːn/ us  
to get bigger and rounder: I ballooned when I was pregnant with my second baby. to quickly increase in size, weight, or importance: The rumours soon ballooned into a full-blown scandal.
(Definition of balloon from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of balloon?
Add Cambridge dictionaries to your browser to your website

Definitions of “balloon” in other dictionaries

Word of the Day

look on the bright side

to find good things in a bad situation

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