breakthrough

[ breyk-throo ]
/ ˈbreɪkˌθru /

noun

a military movement or advance all the way through and beyond an enemy's front-line defense.
an act or instance of removing or surpassing an obstruction or restriction; the overcoming of a stalemate: The president reported a breakthrough in the treaty negotiations.
any significant or sudden advance, development, achievement, or increase, as in scientific knowledge or diplomacy, that removes a barrier to progress: The jet engine was a major breakthrough in air transport.

adjective

constituting a breakthrough: engineered with breakthrough technology; Critics called it a breakthrough film.

Origin of breakthrough

First recorded in 1915–20; noun use of verb phrase break through
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for breakthrough