| noun | (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) |
| noun | what something is used for “the function of an auger is to bore holes” |
| noun | the actions and activities assigned to or required or expected of a person or group “the function of a teacher” |
| noun | a relation such that one thing is dependent on another “height is a function of age” |
| noun | a formal or official social gathering or ceremony “it was a black-tie function” |
| noun | a vaguely specified social event “the party was quite an affair” |
| noun | a set sequence of steps, part of larger computer program |
| verb | perform as expected when applied “The washing machine won't go unless it's plugged in” |
| verb | serve a purpose, role, or function “The tree stump serves as a table” |
| verb | perform duties attached to a particular office or place or function “His wife officiated as his private secretary” |
| map | verb | to establish a mapping (of mathematical elements or sets) |
| function | verb | serve a purpose, role, or function |
| officiate | verb | act in an official capacity in a ceremony or religious ritual, such as a wedding |
| procedural | adjective | of or relating to procedure |
| functioning | noun | process or manner of functioning or operating |
| operative | adjective | (of e.g. a machine) performing or capable of performing |
| operant | adjective | having influence or producing an effect |
| operation | noun | process or manner of functioning or operating |
| function | noun | what something is used for |
| officiation | noun | the performance of a religious or ceremonial or public duty |
| office | noun | (of a government or government official) holding an office means being in power |
| officiating | noun | the act of umpiring |
| functionary | noun | a worker who holds or is invested with an office |