[{"Bold_text": "noun", "List Items": ["a military movement or advance all the way through and beyond an enemy's frontline 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.", "Medicine/Medical.an infection, disease, disorder, or condition that occurs in an individual despite their having received a vaccine, medication, or treatment:Covid breakthroughs are usually less severe than infections in unvaccinated people, indicating that the vaccine is still doing its job of combating the virus."]}, {"Bold_text": "adjective", "List Items": ["constituting a breakthrough:Critics called it a breakthrough film.Their products are engineered with breakthrough technology.Critics called it a breakthrough film.", "Medicine/Medical.relating to or being an infection, disease, disorder, or condition that occurs as a breakthrough:She experienced disabling breakthrough pain despite the high dose of painkillers she was taking.In the original vaccine trial, 89% of breakthrough infections were with a particular family of virus strains.She experienced disabling breakthrough pain despite the high dose of painkillers she was taking."]}]