Longman Dictionary of Contemporary English homepage

fifth column

 noun
     
fifth column [countable]
a group of people who work secretly to help the enemies of the country where they live or the organization in which they work
—fifth columnist noun [countable]
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary

Browse the dictionary