| verb | act in an official capacity in a ceremony or religious ritual, such as a wedding “Who officiated at your wedding?” |
| verb | perform duties attached to a particular office or place or function “His wife officiated as his private secretary” |
| officiation | noun | the performance of a religious or ceremonial or public duty |
| office | noun | the actions and activities assigned to or required or expected of a person or group |
| officiant | noun | a clergyman who officiates at a religious ceremony or service |
| officiating | noun | the act of umpiring |
| function | noun | the actions and activities assigned to or required or expected of a person or group |
| functionary | noun | a worker who holds or is invested with an office |