Noun
1. the actions and activities assigned to or required or expected of a person or group;
"the function of a teacher""the government must do its part""play its role"2. an actor's portrayal of someone in a play;
"she played the part of Desdemona"3. what something is used for;
"the function of an auger is to bore holes""ballet is beautiful but what use is it?"4. normal or customary activity of a person in a particular social setting;
"what is your role on the team?"