intruder Meaning, Definition & Usage

  1. noun someone who intrudes on the privacy or property of another without permission
    interloper; trespasser.

WordNet


In*trud"er noun
Definitions
  1. One who intrudes; one who thrusts himself in, or enters without right, or without leave or welcome; a trespasser.
    They were all strangers and intruders. Locke.

Webster 1913