- 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.