role

(noun) the actions and activities assigned to or required or expected of a person or group. Synonyms: function, office, part. Examples: "The function of a teacher." "The government must do its part." "Play its role."

(noun) an actor's portrayal of someone in a play. Synonyms: character, theatrical role, part, persona. Example: "She played the part of desdemona."

(noun) what something is used for. Synonyms: function, purpose, use. Examples: "The function of an auger is to bore holes." "Ballet is beautiful but what use is it?."

(noun) normal or customary activity of a person in a particular social setting. Example: "What is your role on the team?."