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to push (back) the frontiers
01
to expand the boundaries or limits of knowledge, discovery, or understanding, typically in science, technology, or exploration
Example
Scientists continuously strive to push back the frontiers of medical research.
Explorers have always sought to push the frontiers of human knowledge by reaching uncharted territories.
The invention of the telescope helped astronomers push back the frontiers of our knowledge about the universe.
02
to extend the boundaries of a region or country, often through exploration, colonization, or territorial conquest
CollocationExample
European explorers pushed back the frontiers of the known world by discovering new continents.
The westward expansion of the United States in the 19th century pushed the frontiers of the nation.
The Silk Road trade routes contributed to pushing the frontiers of cultural exchange between East and West.
