A vow of silence was an oath made by an individual to not speak at all, or only to a limited number of people.

Hupyrian servants took vows of silence for their Ferengi masters. (DS9: "Prophet Motive")

Tom Paris threatened to send The Doctor's character in the Fair Haven holoprogram, Father Mulligan, to a nearby monastery with a vow of silence. (VOY: "Fair Haven")

External link Edit

• Vow of silence at Wikipedia