A necktie (or "tie") is an article of clothing worn by men. A tie is part of an ensemble (or outfit) of clothing called the "suit and tie." This outfit is worn in Western countries by men in professional jobs such as business, law, and politics.
A necktie is usually made of silk or polyester, and it usually has a color or pattern on it. Men wear tie a knot in neckties and wear them with dress shirts in order to make them look more formal.