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 terrorized and killed Christian Crusaders
a book in the Old Testament that tells the story of Jonah and the whale
a person believed to bring bad luck to those around him
(Old Testament) Jonah did not wish to become a prophet so God caused a great storm to throw him overboard from a ship; he was saved by being swallowed by a whale that vomited him out onto dry land