Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “breakthrough”

breakthrough

noun [C]     /ˈbreɪkθruː/
an important discovery or event that helps to improve a situation or provide an answer to a problem: breakthrough in sth The development of digital imagery was a breakthrough in computer technology.achieve/make a breakthrough At last a breakthrough in negotiations has been achieved. a major/real/significant breakthrough
(Definition of breakthrough noun from the Cambridge Business English Dictionary © Cambridge University Press)
Focus on the pronunciation of breakthrough

Definitions of “breakthrough” in other dictionaries

Word of the Day

touch

an ability to do things in the stated, especially positive, way

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More