Airs on and above the ground:  An expression used chiefly for the High School exhibitions which are carried out by the Spanish Riding School in Vienna.  Airs on the ground: High School movements, pas de trois, work on long reins.  Airs above the ground: such movements as the courbette, capriole and levade.

All-rounder:  Horse or pony that is good at different things, like jumping, hunting and gymkhana games.

Appaloosa:  A spotted breed; the term is also used to describe any spotted coat patterning generally represented by the breed.

Arabian:  An ancient breed of horse from the deserts of Arabia.  Arabians are known for their courage, stamina, and beauty.