The term trust has several meanings:

• In sociology, trust is willing acceptance of one person's power to affect another. It is discussed more formally in the articles on social capital, profession and authority. There is much dispute on whether degrees of trust can be measured, or whether it simply exists until there is doubt. See ethics and meta-ethics for more on these abstract questions. There is also much dispute about how lying, blaming and hypocrisy interact with trust. See also distrust
• A trust is a large business entity that tries to control a market and/or become a monopoly. The term became common in the late 19th century, when a system of trusts controlled much of the economy of the United States. In 1898, President William McKinley launched the 'trust-busting' era when he appointed the U.S. Industrial Commission on trusts, which interrogated Carnegie, Rockefeller, Schwab, and other industrial titans. The report of the Industrial Commission was seized upon by Theodore Roosevelt, who based much of his presidency on "trust-busting". See also: antitrust. William McKinley. U.S. Industrial Commission. Commissioner Andrew L. Harris.
• A Trust company is a near-bank: a financial institution offering banking, investment and estate administration services.
• A trust is a legal arrangement for the control of property on someone's behalf.
• Trust is an important concept in computer security and security engineering. In this sense, a 'trusted' resource is one that you are forced by necessity to trust - that is to say, that its failure will compromise the security or integrity of the system.
• In cryptography, trust is either of two related concepts - how much one trusts another person to introduce keys, and how confident one is that a given key has a given owner. These determinations are often made via a web of trust.
• Trust was a French hard rock band who rose to fame around 1980.
• Trust Company (better known as TRUSTcompany or TRUST*CO) is an American grunge band that started in the early 2000s.