Halter n. : One who halts or limps; a cripple.

Halter n. : A strong strap or cord.

Halter n. : A rope or strap, with or without a headstall, for leading or tying a horse.

Halter n. : A rope for hanging malefactors; a noose.

Halter v. t. : To tie by the neck with a rope, strap, or halter; to put a halter on; to subject to a hangman's halter.

Example:
What kind of Halter is best to train/lead a week old foal?

Taxonomy
halter, rope halter, rope, bridle, horses, designs, animals, headcollar, Horse halters, jaw, dogs, leather, tying, free encyclopedia, headstall, noseband, snap, throatlatch.

Defination from the web:
halter, headcollar, or, less often, headstall, is headgear that is used to lead or tie up livestock and, occasionally, other animals; it fits ... most cases, it is not safe to ride in an ordinary stable halter because it fits loosely and provides no leverage to the rider should a ...