The term 'THANE' is a title given to a Scottish nobleman in the play Macbeth by William Shakespeare. It is a five-letter word and is used to refer to the main character, Macbeth. The title of THANE was traditionally given to those who held land or had a high rank in the feudal system. In the play, Macbeth is given the title of THANE of Cawdor after he defeats the Norwegian forces. This title is later taken away from him when he commits regicide and usurps the throne.