* Tuan: This word has multiple meanings, but in this context, it likely refers to "gentleman" or "lord." It can also mean "week" (in some contexts) or "round" (referring to something cyclical).
* Vu: This word means "dance" or "movement" and can also be interpreted as "rhythm" or "flow."
Therefore, the most common interpretation of "Tuan Vu" is "gentleman of the dance" or "lord of the movement."
However, the exact meaning can vary depending on the specific context and the family's tradition. It's always best to ask the person with the name for clarification.