fifth column definition, meaning - what is fifth column 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 “fifth column”

See all translations

fifth column

noun [C] uk   us  
a group of people who support the enemies of the country they live in and secretly help them
fifth-columnist
noun [C] uk   us  
a member of such a group
(Definition of fifth column from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of fifth column?
Add Cambridge dictionaries to your browser to your website

Word of the Day

cup tie

a game between two teams trying to win a cup (= prize), especially in football

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 

plyscraper noun

May 18, 2015
a skyscraper made mainly from wood The development of engineered timber could herald a new era of eco-friendly ‘plyscrapers’. Christchurch welcomed its first multistorey timber structure this year, there are plans for Vancouver, and the talk is China could follow

Read More