One who kills, or attempts to kill, by surprise or secret assault; one who treacherously murders any one unprepared for defense.
a murderer (especially one who kills a prominent political figure) who kills by a treacherous surprise attack and often is hired to do the deed; "his assassins were hunted down like animals"; "assassinators of kings and emperors"
a member of a secret order of Muslims (founded in the 12th century) who terroriszed and killed Christian Crusaders
an interesting prestige class
a politically motivated killer
If you are the one to be struck down by an assassin then you will not experience the realization of your goals. To see someone else who has been killed, with the assassin still there, and blood spattered, shows some very bad luck to the dreamer, as he/she will be brought low by the underhandedness of an enemy.
one of the servant classes. The assassin is generally someone who kills someone else for mean reasons and in a very brutal way. Fate/stay night features two assassins among its characters: Sasaki Kojirou and Hassan Sabbah.
Assassin (also called Assassins, Paranoia, or Killer) is a game commonly played on college campuses and among high school communities. Assassin is, essentially, a live-action roleplaying game where players' goal is to "kill" each other, and to be the last surviving assassin.
Assassin is a prestige class in the 3.5 version of the role-playing game Dungeons & Dragons. It first appeared as a character class in the 1st edition, an optional kit in the second and a full prestige class in version 3.0. Assassins are deadly and unscrupulous killers and spies.
Assassin is an anime character from the Japanese visual novel and anime series Fate/stay night by TYPE-MOON.
Assassin is a character class common to many games. Such characters typically combine elements of combat gaming with strong stealth skills, and specialise in defeating an enemy without becoming involved in a protracted melee.