tightly guarded; sharply demarcated; well-organized formation
Meanings
2 senses · 6 examplesidiom
tightly guarded; impregnable defense
formalOriginally a military term for a strongly fortified position. Can describe both physical defenses and abstract safeguards (e.g., market entry barriers).
This castle is tightly guarded and difficult for enemies to breach.
Their network security system is impregnable.
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After repeated reinforcements, this defensive line has become unassailable.
idiom
sharply demarcated; strictly separated
formalOften used to describe clear distinctions or strict separation between two parties, ideas, or territories.
Within the company, the R&D and sales departments are sharply demarcated, leading to poor communication.
In this match, the two sides' formations are strictly separated, making it hard to predict the winner.
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There is a strict separation between the two opposing viewpoints.