intruder (n.)

1530s, agent noun from intrude. Originally legal. Fuller ("Pisgah-Sight of Palestine," 1650) has fem. form intrudress.

Entries linking to intruder

early 15c., in an ecclesiastical sense, "take possession of (a prebend) not rightfully one's own," a back-formation from intrusion, or else from Latin intrudere "to thrust in, force in," from in- "in" (from PIE root *en "in") + trudere "to thrust, push," from PIE *treud- "to press, push, squeeze" (see threat).

From 1560s in a physical sense of "thrust in" (transitive or intransitive); meaning "enter unbidden and without welcome" is from 1570s; that of "thrust or bring in without necessity or right" is from 1580s. Related: Intruded; intruding.

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Definitions of intruder

intruder (n.)

someone who intrudes on the privacy or property of another without permission;

Synonyms: interloper / trespasser

From wordnet.princeton.edu

Dictionary entries near intruder

introspective

introversion

introvert

introverted

intrude

intruder

intrusion

intrusive

intrust

intubate

intuit