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 single written symbol that represents an entire word or phrase without indicating its pronunciation; "7 is a logogram that is pronounced `seven' in English and `nanatsu' in Japanese"