Noun

(en noun)

(historical) A member of a Muslim militant group responsible for murdering Christian leaders during the Crusades.

*, II.29:

The Assassines , a nation depending of Phœnicia, are esteemed among the Mahometists of a soveraigne devotion and puritie of maners; they hold, that the readiest and shortest way to gaine Paradise, is to kill some one of a contrary religion.

Someone who intentionally kills a person, especially a professional who kills a public or political figure.

* {{quote-magazine, date=2013-06-29, volume=407, issue=8842, page=55, magazine=(The Economist)

, title= Travels and travails , passage=Even without hovering drones, a lurking assassin , a thumping score and a denouement, the real-life story of Edward Snowden, a rogue spy on the run, could be straight out of the cinema. But, as with Hollywood, the subplots and exotic locations may distract from the real message: America’s discomfort and its foes’ glee.}}

Any ruthless killer.

Noun

(marksmen)

A man or person skilled in shooting (a gun) at a target.

(soccer) goalscorer.

* {{quote-news

, year=2011 , date=January 22 , author=Phil McNulty , title=Aston Villa 1 - 0 Man City , work=BBC citation , page= , passage=In what was a characteristic Bent display, he made only an occasional impact - but proved once again in front of England coach Fabio Capello that he is one of the most reliable marksmen in the domestic game.}}