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Meaning ofbreakthroughin English

breakthrough

us//bɹɪˈtʃuː//uk//bɹɪˈtʃuː//

Pluralbreakthroughs

Definitions

Adjective
1. characterized by significant progress; overcoming obstacles
Noun
1. major innovation or discovery; overcomes obstacles
2. advance through enemy lines (military context)
  The military forces achieved a breakthrough in the enemy's defense line.
3. penetration of opposition's defense (sports)
  The soccer team made a breakthrough when they scored the winning goal.
4. penetrating a wall or gap between tunnel sections
  The construction team made a breakthrough in the tunnel by penetrating the wall.