a foremost part of the foot, where the one on the inside (the leftmost one on the right foot, see picture) is by far the thickest, the one on the other end is short and thin.
the angle that the wheel makes with the longitudinal axis of the vehicle, as a function of kinematic and compliant effects, as opposed to steer. Positive toe is the front of the wheel pointing in towards the centreline of the vehicle. It can be measured in linear units, at the front of the tyre, or as an angular deflection.