Interloper

Etymology
From inter-: + loper:.

Noun

 * 1)  An unlicensed or illegitimate trader.
 * 2) One who interferes, intrudes or gets involved where not welcome.
 * They disliked the interloper, and forced him to leave.
 * ''Microsoft thought Linux as a new interloper, who was stealing away the Desktop market.

Translations

 * Dutch: indringer
 * Finnish: tungettelija, tunkeilija


 * Icelandic:, aðskotadýr

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