from The American Heritage® Dictionary of the English Language, 4th Edition
- n. One who murders by surprise attack, especially one who carries out a plot to kill a prominent person.
- n. A member of a secret order of Muslims who terrorized and killed Christian Crusaders and others.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A member of a Muslim militant group responsible for murdering Christian leaders during the Crusades.
- n. Someone who intentionally kills a person, especially a professional who kills a public or political figure.
- n. Any ruthless killer.
- v. To assassinate.
from the GNU version of the Collaborative International Dictionary of English
- n. One who kills, or attempts to kill, by surprise or secret assault; one who treacherously murders any one unprepared for defense.
- transitive v. To assassinate.
from The Century Dictionary and Cyclopedia
- n. One of the Assassins, a military and religious order in Syria, founded in Persia by Hassan ben Sabbah about the year 1090.
- n. One who undertakes, for a reward previously agreed on, to put another person to death by surprise or secret assault; hence, one who kills, or attempts to kill, by treacherous violence; a murderer.
- n. A breast-knot, or similar decoration worn in front.
- To murder; assassinate.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a member of a secret order of Muslims (founded in the 12th century) who terrorized and killed Christian Crusaders
- n. a murderer (especially one who kills a prominent political figure) who kills by a surprise attack and often is hired to do the deed
French, from Medieval Latin assassīnus, from Arabic ḥaššāšīn, pl. of ḥaššāš, hashish user, from ḥašīš, hashish; see hashish.(American Heritage® Dictionary of the English Language, Fourth Edition)
From French assassin or Italian assassino, from either Arabic حشاشين (ḥaššāšīn, "hashish users"), or أساسيون (ʾasāsiyyūn). (Wiktionary)