intruder

• POS: Noun
• HYPHEN: in=trud=er

CIDE DICTIONARY

intruder, n. 

•  One who intrudes; one who thrusts himself in, or enters without right, or without leave or welcome; a trespasser.  [1913 Webster]

  "They were all strangers and intruders."  [1913 Webster]
•  A person who enters a private residence or place of business with the intention to perform a criminal act; as, killed by an intruder.  [PJC]

OXFORD DICTIONARY

intruder, n. a person who intrudes, esp. into a building with criminal intent.

THESAURUS

intruder

arrival, arriviste, black sheep, blemish, burglar, busybody, buttinsky, comer, crasher, emigrant, encroacher, entrant, foreign body, foreign intruder, gate-crasher, gatecrasher, greenhorn, immigrant, impurity, in-migrant, incomer, infiltrator, interloper, invader, kibitzer, meddler, misfit, monkey wrench, mote, new arrival, new boy, newcomer, novus homo, oddball, parvenu, recruit, rookie, settler, sliver, snooper, speck, splinter, squatter, stone, stowaway, tenderfoot, thief, trespasser, uninvited guest, unwelcome guest, upstart, visitant, visitor, weed

ROGET THESAURUS

intruder

Extraneousness

N extraneousness, extrinsicality, exteriority, alienage, alienism, foreign body, foreign substance, foreign element, alien, stranger, intruder, interloper, foreigner, novus homo, newcomer, immigrant, emigrant, creole, Africander, outsider, Dago, wop, mick, polak, greaser, slant, Easterner, Dutchman, tenderfoot, extraneous, foreign, alien, ulterior, tramontane, ultramontane, excluded, inadmissible, exceptional, in foreign parts, in foreign lands, abroad, beyond seas, over sea on one's travels.

Interposition

N interposition, interjacence, intercurrence, intervenience, interlocation, interdigitation, interjection, interpolation, interlineation, interspersion, intercalation, interpenetration, permeation, infiltration, intervention, interference, intrusion, obtrusion, insinuation, insertion, dovetailing, embolism, intermediary, intermedium, go between, bodkin, intruder, interloper, parenthesis, episode, flyleaf, partition, septum, diaphragm, midriff, dissepiment, party wall, panel, room divider, halfway house, interjacent, intercurrent, intervenient, intervening, intermediate, intermediary, intercalary, interstitial, embolismal, parenthetical, episodic, mediterranean, intrusive, embosomed, merged, between, betwixt, twixt, among, amongst, amid, amidst, mid, midst, in the thick of, betwixt and between, sandwich-wise, parenthetically, obiter dictum.