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English definition of “penetrate”

penetrate

verb [I/T]  /ˈpen·ɪˌtreɪt/ us  

penetrate verb [I/T] (MOVE)

to move into or through something: [I] The drill isn’t sharp enough to penetrate into the rock. [T] Women have begun to penetrate a lot of fields that were dominated by men for centuries.

penetrate verb [I/T] (UNDERSTAND)

to understand something, or to be understood as a result of study or investigation: [I] Her writing penetrated to the heart of contemporary life.
penetration
noun [U]  /ˌpen·ɪˈtreɪ·ʃən/ us  
The program’s penetration in Utah schools varies from district to district.
(Definition of penetrate from the Cambridge Academic Content Dictionary © Cambridge University Press)
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