Vani starts from point A and drives $6\text{km}$ towards West. She then takes a left turn, drives $8\text{km}$. She then turns left and drives $6\text{km}$ to reach point B. In which direction is point B with respect to point A?

Let us track Vani's movement step-by-step considering point A as the origin $(0,0)$:
1. Starts at point A: $(0,0)$
2. **Drives $6\text{km}$ West:** Moves horizontally to the left. New position is $(-6,0)$.
3. **Takes a left turn and drives $8\text{km}$:** Facing West, a left turn points towards the South. New position is $(-6,-8)$.
4. **Turns left and drives $6\text{km}$ to reach point B:** Facing South, a left turn points towards the East. New position becomes:

$$(-6+6,-8)=(0,-8)$$

Point B is located at $(0,-8)$. Comparing this with point A $(0,0)$, point B lies directly along the negative y-axis.

Therefore, point B is in the South direction with respect to point A.