Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “breakthrough”

See all translations

breakthrough

noun [C] uk   /ˈbreɪk.θruː/ us  
B2 an important discovery or event that helps to improve a situation or provide an answer to a problem: Scientists are hoping for a breakthrough in the search for a cure for cancer. A major breakthrough in negotiations has been achieved.
More examples
Translations of “breakthrough”
in Korean 돌파구…
in Arabic اختِراق…
in Portuguese avanço importante, progresso…
in Catalan avenç…
in Japanese 大発見, 解明, 打開…
in Italian svolta, passo avanti…
in Chinese (Traditional) 重大進展, 突破…
in Russian прорыв…
in Turkish büyük hamle, önemli buluş, ilerleme…
in Chinese (Simplified) 重大进展, 突破…
in Polish przełom…
(Definition of breakthrough from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of breakthrough?
Add Cambridge dictionaries to your browser to your website

Definitions of “breakthrough” in other dictionaries

Word of the Day

christmassy

typical of Christmas, or happy because it is Christmas

Word of the Day

Cleavage proves divisive in Cambridge’s words of 2014

by Alastair Horne,
December 19, 2014
​​​​ Other dictionaries may choose faddish novelties as their words of the year, but here at Cambridge, we like to do something different. We look for the words that have seen sudden surges in searches over the course of the year – words that have been baffling users of English and driven them

Read More 

tweleb noun

December 22, 2014
informal a Twitter celebrity; (more specifically, someone who has more than 1,000 followers on Twitter) There were a few old and a few new faces, including a tweleb or two. Expect to see and hear more from these cool kids.

Read More