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Word

breakthrough

noun C1
/ˈbɹeɪk.θɹuː/

Meanings

noun

a major discovery or development that leads to significant progress

breakthrough: a major discovery or development that leads to significant progress
noun

an important moment of progress after difficulty, especially in work, learning, or creativity

breakthrough: an important moment of progress after difficulty, especially in work, learning, or creativity
noun

a sudden advance through a barrier or line into a new area

breakthrough: a sudden advance through a barrier or line into a new area

Definition

A breakthrough is an important discovery or development that solves a problem or makes major progress.

A breakthrough is a big step forward that changes what is possible in a field or situation. It often happens after a long period of effort or limited progress. People use it for science and technology, but also for personal or creative work when someone finally makes real progress.

Examples

  • After months of failed trials, the team finally announced a breakthrough that made the process stable.
  • I had a breakthrough while revising my presentation, and the structure suddenly felt coherent.
  • She described the breakthrough as a turning point that reshaped the entire project timeline.
  • They celebrated a breakthrough in negotiations when both sides accepted the same core principle.

Common mistake

Learners sometimes use "breakthrough" as a verb ("to breakthrough") instead of using "break through" or "make a breakthrough."