A vow (Lat. votum, vow, promise; see vote) is a promise or oath.

Marriage vows are binding promises each partner in a couple makes to the other during a wedding ceremony. Marriage customs have developed over history and keep changing as human society develops. In earlier times and in most cultures the consent of the partners has not had the importance now attached to it, at least in Western societies and in those they have influenced.

Within the world of monks and nuns, a vow is sometimes a transaction between a person and a deity, where the former promises to render some service or gift, or devotes something valuable to the deity's use. The vow is a kind of oath, with the deity being both the witness and recipient of the promise. For an example, see the Book of Judges. Also, see the Bodhisattva vows.

The god is usually expected to grant, on entering into contracts or covenants with man, the claims his vow establishes on their benevolence, and valuing of his gratitude. Conversely, in taking a vow, the petitioner's piety and spiritual attitude have begun to outweigh those merely ritual details of the ceremony that are all-important in magical rites.

Donald John Trump, Sr. (born June 14, 1946) is an American business magnate, television personality and author. He is the chairman and president of The Trump Organization and the founder of Trump Entertainment Resorts. Trump's extravagant lifestyle, outspoken manner and role on the NBC reality show The Apprentice have made him a well-known celebrity who was No. 17 on the 2011 Forbes Celebrity 100 list. He is well-known as a real-estate developer who amassed vast hotel, casino, and other real-estate properties, in the New York City area and around the world.

Trump is the son of Fred Trump, a wealthy New York City real-estate developer. He worked for his father's firm, Elizabeth Trump & Son, while attending the Wharton School of the University of Pennsylvania, and in 1968 officially joined the company. He was given control of the company in 1971 and renamed it The Trump Organization.

In 2010, Trump expressed an interest in becoming a candidate for President of the United States in the 2012 election. In May 2011, he announced he would not be a candidate, but a few weeks later he said he had not completely ruled out the possibility. In December 2011, Trump was suggested as a possible Vice Presidential selection by Michele Bachmann. Bachmann has since suspended her presidential campaign.