intruder
/in'tru:də/
Definition
Noun: 1. A person who enters a place or situation without permission or welcome: Someone who intrudes, especially on someone else's privacy, property, or affairs. 2. An unwanted or unwelcome person or thing that enters a space or system: Often implies a violation of boundaries or security.
Usage and Examples
- The security alarm was triggered by an intruder in the warehouse.
- She felt like an intruder at the private family gathering.
- The software detects and blocks network intruders.
Advanced Usage
- "To feel like an intruder": To feel unwelcome or that one's presence is inappropriate in a situation.
- Listening to their personal argument, I felt like an intruder.
- In military/aviation contexts, it can refer to an enemy aircraft in restricted airspace.
- Radar identified an unidentified intruder approaching the coast.
Variants and Related Words
- Intrude (verb): To enter or be present where one is not welcome or has no right to be.
- I don't want to intrude on your meeting.
- Intrusion (noun): The act of intruding.
- The noise from the street was a constant intrusion.
Synonyms
- Trespasser
- Interloper
- Unwelcome guest
Related Phrases
- Gatecrasher: An intruder at a party or event.
- Home invader: An intruder who breaks into a house.
Noun
-
someone who intrudes on the privacy or property of another without permission
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