Open English Wordnet
Nouns
(n)function, mathematical function, single-valued function, map, mapping(mathematics) a mathematical relation such that each element of a given set (the domain of the function) is associated with an element of another set (the range of the function)
(n)affair, occasion, social occasion, function, social function, social gathering, social affaira formal or official social gathering or ceremony of people“the party was quite an affair”, “an occasion arranged to honor the president”, “a seemingly endless round of social functions”
(n)routine, subroutine, subprogram, procedure, functiona set sequence of steps, part of larger computer program