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 symmetric angle that each wheel makes with the longitudinal axis of the vehicle, as a function of static geometry, and kinematic and compliant effects. This can be contrasted with steer, which is the antisymmetric angle, ie both wheels point to the left or right, in parallel (roughly). 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.