- Turning the plantar (bottom surface) of the foot away from midline (same as: eversion, everted heel).
- Turning the plantar (bottom surface) of the foot toward midline (same as: inversion, inverted heel).
- Ventilation; Ventilate
- To allow fresh air in so as to freshen. To provide with a vent or vents.
- The size of an object or region in three dimensional space.