role

(noun): A character or part played by a performer or actor.
(noun): The expected behaviour of an individual in a society.
(noun): The function or position of something.
(noun): Designation that denotes an associated set of responsibilities, knowledge, skills, and attitudes
(noun): (grammar) The function of a word in a phrase.
(noun): In the Raku programming language, a code element akin to an interface, used for composition of classes without adding to their inheritance chain.

Her dream was to get a role in a Hollywood movie, no matter how small.
The role of women has changed significantly in the last century.
Local volunteers played an important role in cleaning the beach after the oil spill.
The project manager role is responsible for ensuring that everyone on the team knows and executes his or her assigned tasks.