Noun role has 4 senses
  1. function, office, part, role - 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"
    --1 is a kind of duty
    --1 has particulars:
     capacity; hat; portfolio; stead, position, place, lieu; second fiddle
  2. character, role, theatrical role, part, persona - an actor's portrayal of someone in a play; "she played the part of Desdemona"
    --2 is a kind of portrayal, characterization, enactment, personation
    --2 has particulars:
     bit part, minor role; heavy; hero; ingenue; title role, name part; heroine; villain, baddie
  3. function, purpose, role, use - what something is used for; "the function of an auger is to bore holes"; "ballet is beautiful but what use is it?"
    --3 is a kind of utility, usefulness
    --3 has particulars: raison d'etre
  4. role - normal or customary activity of a person in a particular social setting; "what is your role on the team?"
    --4 is a kind of
    --4 has particulars: gender role; position