Difference between Role and Function

Role

Part of speech: noun

Definition: A character or part played by a performer or actor. The expected behaviour of an individual in a society. The function or position of something. The function of a word in a phrase.

Function

Part of speech: verb

Definition: to have a functionto carry on a function; to be in action

Part of speech: noun

Definition: What something does or is used for.A professional or official position.An official or social occasion.A relation where one thing is dependent on another for its existence, value, or significance.A relation in which each element of the domain is associated with exactly one element of the codomain.A routine that receives zero or more arguments and may return a result.The physiological activity of an organ or body part.The characteristic behavior of a chemical compound.