hoof

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. The horny sheath covering the toes or lower part of the foot of a mammal of the orders Perissodactyla and Artiodactyla, such as a horse, ox, or deer.
2. n. The foot of such an animal, especially a horse.
3. n. Slang The human foot.
4. v. To trample with the hoofs.
5. v. Slang To dance, especially as a professional.
6. v. Slang To go on foot; walk.
7. idiom. hoof it Slang To walk.
8. idiom. hoof it Slang To dance.
9. idiom. on the hoof Not yet butchered; alive. Used especially of cattle.

Century Dictionary and Cyclopedia

1. n. The casing of hard horny substance which sheathes the ends of the digits or incases the foot in many animals. A hoof differs from a nail or claw only in being blunt and large enough to inclose the end of the limb; and almost every gradation is to be found between such structures as the human nails, or the claws of a cat, and the hoofs of a horse or an ox. The substance is the same in any case, and the same as horn, being modified and greatly thickened cuticle or epidermis. See hoofed.
2. n. A hoofed animal; a beast.
3. n. In geometry, an ungula or part of a cylinder or cone cut off by a plane cutting both the base and the curved surface.
4. n. In tortoise-shell manuf., one of the smaller plates of translucent shell forming the head.
5. To walk, as cattle; foot: with an indefinite it.
6. To kill (game) by shooting it on the ground.

Wiktionary

1. n. The tip of a toe of an ungulate such as a horse, ox or deer, strengthened by a thick keratin covering.
2. n. slang The human foot.
3. v. To trample with hooves.
4. v. colloquial To walk.
5. v. informal To dance, especially as a professional.
6. v. colloquial, soccer, transitive to kick, especially to kick the football a long way downfield with little accuracy.

GNU Webster's 1913

1. n. The horny substance or case that covers or terminates the feet of certain animals, as horses, oxen, etc.
2. n. A hoofed animal; a beast.
3. n. (Geom.) See Ungula.
4. v. rare To walk as cattle.
5. v. Slang, U.S. To be on a tramp; to foot.

WordNet 3.0

1. v. dance in a professional capacity
2. n. the horny covering of the end of the foot in ungulate mammals
3. v. walk.
4. n. the foot of an ungulate mammal