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1. One that interferes with the affairs of others, often for selfish reasons; a meddler.
2. One that intrudes in a place, situation, or activity: "When these interlopers choke out native species, ecologists see a danger signal" (William K. Stevens).
3. Archaic
a. One that trespasses on a trade monopoly, as by conducting unauthorized trade in an area designated to a chartered company.
b. A ship or other vessel used in such trade.

[inter- + probably Middle Dutch lōper, runner (from lōpen, to run).]

in′ter·lope′ v.
Word History: The word interloper has its origin in the time when England was embarking on the course that would lead to the British Empire. Interloper is first recorded in the late 1500s in connection with the Muscovy Company, the earliest major English trading company (chartered in 1555). The word was soon being used in connection with independent traders competing with the East India Company (chartered in 1600). These companies were established as monopolies, and independent traders, called interlopers, were not welcome. The term is probably partly derived from Dutch, the language of one of the great trade rivals of the English at that time. The inter- is simply the prefix inter-, which English has borrowed from Latin, meaning "between, among." The element -loper is probably related to the same element in landloper, "vagabond," a word adopted from Dutch landloper, with the same sense and composed of land, "land," and loper, from lopen, "to run, leap." The word interloper soon came to be used in the extended sense "meddler, person who intrudes in others' affairs" by the 1630s.


(ˌɪntəˈləʊp; ˈɪntəˌləʊp)
vb (intr)
to intrude or interfere in the affairs of others


(ˌɪn tərˈloʊp, ˈɪn tərˌloʊp)

v.i. -loped, -lop•ing.
1. to thrust oneself into the domain or affairs of others.
2. to intrude into some region or field of trade without a proper license.
in′ter•lop`er, n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Verb1.interlope - encroach on the rights of others, as in trading without a proper license
intervene, step in, interfere, interpose - get involved, so as to alter or hinder an action, or through force or threat of force; "Why did the U.S. not intervene earlier in WW II?"


To intervene officiously or indiscreetly in the affairs of others:
References in periodicals archive ?
players who interlope into an international side can't possess genuine patriotism for the cause .
La bombe de ce qui est convenu d'appeler l'EI, confortee par les revelations iraniennes sur l'identite juive d'Abou Bakr Al Baghdadi, dont le vrai nom serait Ibrahim ibn Awad ibn Ibrahim Al Badri Arradoui Al Hoseini, alias Simon Eliott, plonge dans le monde interlope du [beaucoup moins que] djihad afghan [beaucoup plus grand que] mene sous la banniere etoilee de l'Amerique en guerre contre le [beaucoup moins que] peril rouge [beaucoup plus grand que] remplace au pied leve par le [beaucoup moins que] peril vert [beaucoup plus grand que].
Le dernier chapitre permet a Panneton de retablir les faits au sujet des pretendus liens entre Laporte et le monde interlope.