Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “D-Day”

See all translations

D-Day

noun [C usually singular] uk   /ˈdiː.deɪ/ us  
the day during the Second World War when the Allies began their invasion of Europe by attacking the coast of northern France: The D-Day landings began on 6 June 1944, when Allied forces invaded Normandy. a day when something important will happen: After four hectic weeks of electioneering, candidates are preparing themselves for D-Day (= election day) tomorrow.
(Definition of D-Day from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of D-Day?
Add Cambridge dictionaries to your browser to your website

Word of the Day

illusion

an idea or belief that is not true

Word of the Day

Lies, lies, lies!

by Kate Woodford,
February 25, 2015
​​​ According to sociologists (=people who study the relationships between people living in groups), we are good at lying. As a species, we have developed a remarkable ability to deceive each other (= persuade each other that something false is true). Being able to say things that are not true can help with

Read More 

showrooming noun

February 23, 2015
the activity of examining a product in a physical store and then making the purchase with an online retailer Amazon’s new smartphone is specifically designed to make showrooming fast and easy.

Read More