Use
Part of speech: noun
Definition: The act of using. Usefulness, benefit. A function; a purpose for which something may be employed.
Part of speech: verb
Definition: To accustom; to habituate. To employ; to apply; to utilize. To exhaust the supply of; to consume by employing To exploit. To be accustomed.
Example sentence: To argue with a man who has renounced the use and authority of reason, and whose philosophy consists in holding humanity in contempt, is like administering medicine to the dead, or endeavoring to convert an atheist by scripture.
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.
Example sentence: Education must lead us from the irresponsible opinion to true responsible judgment. It must lead us from chance and arbitrariness to rational clarity and intellectual order. Therefore, let us guide our students over the road of discipline from materials, through function, to creative work.