A Quick and Simple Dictionary

function

1. Noun.  What something does or is used for.
2. Noun.  A professional or official position.
3. Noun.  An official or social occasion.
4. Noun.  A relation where one thing is dependent on another for its existence, value, or significance.
5. Noun.  (mathematics) A relation in which each element of the domain is associated with exactly one element of the codomain.
6. Noun.  (computing) A routine that receives zero or more arguments and may return a result.
7. Noun.  (biology) The physiological activity of an organ or body part.
8. Noun.  (chemistry) The characteristic behavior of a chemical compound.
9. Noun.  (anthropology) The role of a social practice in the continued existence of the group.
10. Verb.  (intransitive) to have a function.
11. Verb.  (intransitive) to carry on a function; to be in action.