Steep: Used to denote incorrect angles of articulation. For example, a steep front describes a more upright shoulder placement than is preferred.

Stern: Tail.

Stern Tail: A tail found in a sporting dog or hound that is generally carried straight out.

Sternum: A row of eight bones that form the floor of the chest.

Stifle: The joint of the hind leg between the thigh and the second thigh. The dog's knee.

Stilted: The choppy, up-and-down gait of the straight-hocked dog.