Skip to main content
intruder

intruder

240 3.9
A person who enters a place without permission to steal or harm people
  • noun
  • /ɪnˈtruːdər/
translation icon : intruso
  • When they heard a noise in the night, they feared an intruder had entered their home.
  • presence of an intruder
  • recognize an intruder
  • identify an intruder

But if others did bring charges of trespass, the intruder would have to plead guilty.

Autoplay Next

Examples

  • Hey, you have an intruder, Lily, lock your door.

  • I felt like a burglar in that passage, an intruder in my home.

    Fiction book (1992)
  • It's like trying to lock all the doors and windows when an intruder is breaking in.

    Fiction book (1992)
  • The dog thinks he has protected us once again from an intruder.

  • The cops think that it was an intruder that broke in, but they couldn't find any signs of it.

  • "Did you get a good look at the intruder's face, sir?"

  • We had a chat about intruder alarms and safe combinations.

  • Clean floors and steps would betray the presence of an intruder as clearly as prints.

    Fiction book (1992)
  • Dave took a closer look at the intruder; he was slim, his apparent age about twenty-five.

    Fiction book (1990)
  • The security guard's gaze shifted from the newly arrived intruder to the Chinese man in the gray suit.

    Fiction book (1991)

Synonyms

burglar
vsintruder
110 1.4

A person who enters a building without permission to steal things

is any unauthorised entrant and can include non theft disturbance
trespasser
vsintruder
25 4.9

A person who goes onto someone else's land or into their building without permission

implies unauthorised entry often with possible criminal or disruptive intent
interloper
vsintruder
17 8.9

A person who goes into a place or situation where they are not wanted

focuses on physical unauthorised entry with possible criminal or disturbing intent
infiltrator
vsintruder
12 8.2

A person who secretly enters a place to get secret information or cause harm

is a general unauthorised entrant, not necessarily secret or organised
unwelcome guest
vsintruder
2 3.8

A person who comes to an event without being invited or wanted

is about illegal or harmful entry rather than mere unwanted attendance
housebreaker
vsintruder
  • UK
1 7.6

A person who enters a house without permission to steal things

is a broader unauthorised entry, not limited to theft in houses
encroacher
vsintruder
1 9.0

A person who gradually takes land or rights from others without permission

describes sudden or one time unauthorised entry rather than slow advance

Antonyms

1.0

A person invited to someone's home, hotel, restaurant, or event

3 3.3

A person who is asked to come to an event as a guest

How Intrusive

burglar
110 1.4
intruder
240 3.9
trespasser
25 4.9

Surface Forms

intruder singular
intruders plural

Morphology

intruder = intrude (transparent) = intrude + er

The noun is a regular agent noun formed from the verb 'intrude' by adding the productive suffix '-er'; the meaning 'one who intrudes' follows directly.

Etymology

Intruder comes from Latin parts in- ('into') and trudere ('to push'), so it literally means 'one who pushes into' a place. That's why an intruder is someone who enters without permission, often to steal or cause harm.