hoof

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun 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.
• noun The foot of such an animal, especially a horse.
• noun Slang The human foot.
• intransitive verb To trample with the hooves.
• intransitive verb To dance, especially as a professional.
• intransitive verb To go on foot; walk.
• idiom (hoof it) To walk.
• idiom (hoof it) To dance.
• idiom (on the hoof) Not yet butchered; alive. Used especially of cattle.

from The Century Dictionary.

• To walk, as cattle; foot: with an indefinite it.
• To kill (game) by shooting it on the ground.
• noun The casing of hard horny substance which sheathes the ends of the digits or incases the foot in many animals.
• noun A hoofed animal; a beast.
• noun In geometry, an ungula or part of a cylinder or cone cut off by a plane cutting both the base and the curved surface.
• noun In tortoise-shell manuf., one of the smaller plates of translucent shell forming the head.

from the GNU version of the Collaborative International Dictionary of English.

• noun The horny substance or case that covers or terminates the feet of certain animals, as horses, oxen, etc.
• noun A hoofed animal; a beast.
• noun (Geom.) See Ungula.
• intransitive verb rare To walk as cattle.
• intransitive verb Slang, U.S. To be on a tramp; to foot.
• intransitive verb to foot it.
• intransitive verb of cattle, standing (on the hoof); not slaughtered.
• intransitive verb live cattle.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

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

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb dance in a professional capacity
• noun the horny covering of the end of the foot in ungulate mammals
• verb walk
• noun the foot of an ungulate mammal