Meaning ofintrusionin English

Noun

1. forcible entry by an external group
   The company experienced a security intrusion when hackers broke into their system.
2. magma injected into rock formations; forming new rock
   Magma intrusion occurs when molten rock is forced into existing rock formations.
3. unspoken sound inserted into a word
   The linguist studied the intrusion of a silent vowel in the pronunciation of the word.