We found 30 dictionaries that define the word intruder:

General (21 matching dictionaries)

1. intruder: Merriam-Webster
2. intruder: Oxford Learner's Dictionaries
3. intruder: Collins English Dictionary
4. intruder: Vocabulary.com
5. Intruder, intruder: Wordnik
6. intruder: Cambridge Advanced Learner's Dictionary
7. intruder: Wiktionary
8. Intruder, intruder: Dictionary.com
9. intruder: Cambridge Essential American English Dictionary
10. Intruder (air combat), Intruder (band), Intruder (board game), Intruder (disambiguation), Intruder (metal band), Intruder (play), Intruder (song), Intruder, The Intruder (D'Annunzio novel), The Intruder (Townsend novel), The Intruder (video game), The intruder: Wikipedia, the Free Encyclopedia
11. Intruder: Online Plain Text English Dictionary
12. intruder: Webster's Revised Unabridged, 1913 Edition
13. intruder: Rhymezone
14. intruder: AllWords.com Multi-Lingual Dictionary
15. intruder: Webster's 1828 Dictionary
16. intruder: FreeDictionary.org
17. intruder: Mnemonic Dictionary
18. intruder: TheFreeDictionary.com
19. intruder: Longman Dictionary of Contemporary English

Business (3 matching dictionaries)

20. intruder: Merriam-Webster Legal Dictionary
21. Bouvier's Law Dictionary 1856 Edition (No longer online)
22. Intruder (crime), intruder: Legal dictionary

Computing (1 matching dictionary)

23. Intruder (crime), intruder: Encyclopedia

Medicine (1 matching dictionary)

24. intruder: Medical dictionary

Miscellaneous (2 matching dictionaries)

25. Brilliant Dream Dictionary (No longer online)
26. intruder: Idioms

Slang (1 matching dictionary)

27. The Intruder, intruder: Urban Dictionary

Tech (1 matching dictionary)

28. DOD Dictionary of Military Terms (No longer online)

(Note: See intrude as well.)

Definitions from Wiktionary ( ) ▸ noun:  Someone who intrudes. Similar: trespasser, interloper, obtruder, invadee, invader, infringer, interruptee, colonizer, infiltrant, interferer, more... Opposite: resident, inhabitant, occupant Types: burglar, thief, robber, trespasser, home invader, cat burglar, serial burglar, car thief, more... Phrases: intruder detection, Intruder in the Dust, Grumman A-6 Intruder, Turnabout Intruder, Flight of the Intruder, more... Adjectives: unwelcome, foreign, human, alien, strange, potential, mere, unwanted, mysterious, male, bold Colors:     black,     dark gray,     blood red,     midnight blue,     charcoal, more... ▸ Words similar to intruder ▸ Usage examples for intruder ▸ Idioms related to intruder ▸ Wikipedia articles (New!) ▸ Popular adjectives describing intruder ▸ Words that often appear near intruder ▸ Rhymes of intruder ▸ Invented words related to intruder