subterranean operations
📖 Definitions
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Activities or operations conducted underground, such as mining, tunneling, or geological surveys.; Secret, covert, or clandestine activities carried out by a group, often with political or military implications.; A title or name for a project, book, or organization focusing on underground themes or hidden activities.
💬 Examples
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The company specializes in subterranean operations for urban infrastructure development.
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Intelligence agencies were suspected of conducting subterranean operations to destabilize the regime.
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The new documentary series is titled 'Subterranean Operations' and explores hidden cave systems.