English Dictionary

Define dictionary terms easily in our powerful online English dictionary.

Searching for...

No matching words found

Try a different search term or browse the dictionary

Definition balloon in British English

balloon verb

[intransitive] verb
/bəˈluːn/
1

to become larger and rounder in shape

Example

Her coat ballooned round her in the wind.

Synonyms and related words
2

to increase very quickly in amount or degree

Example

Our expenses had ballooned.

Example

Within weeks, the fighting had ballooned into full-scale war.

Synonyms and related words
Definition balloon in British English