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A type of Social Security benefit available to spouses and minor or disabled children of retired or disabled workers who qualify for either retirement or disability benefits under the program's rigorous qualification guidelines.

The biological father of a child born to an unmarried couple who has been established as the father either by his admission or by an agreement between him and the child's mother. An acknowledged father must pay child support.

A special kind of property ownership that's only for married couples. Both spouses have the right to enjoy the entire property, and when one spouse dies, the surviving spouse gets title to the property (called a right of survivorship). It is similar to joint tenancy, but it is available in only about half the states.

Adulthood in the eyes of the law. After reaching the age of majority, a person is permitted to vote, make a valid will, enter into binding contracts, enlist in the armed forces and purchase alcohol. Also, parents may stop making child support payments when a child reaches the age of majority. In most states the age of majority is 18, but this varies depending on the activity. For example, in some states people are allowed to vote when they reach the age of eighteen, but can't purchase alcohol until they're 21.

An adult who has been given the legal right by a court to control and care for a minor or her property. Someone who looks after a child's property is called a 'guardian of the estate.' An adult who has legal authority to make personal decisions for the child, including responsibility for his physical, medical and educational needs, is called a 'guardian of the person.' Sometimes just one person will be named to take care of all these tasks. An individual appointed by a court to look after an incapacitated adult may also be known as a guardian, but is more frequently called a conservator.

The right and obligation to make decisions about a child's upbringing, including schooling and medical care. Many states typically have both parents share legal custody of a child. Compare physical custody.

A federal law that requires employers to provide an employee with 12 weeks of unpaid leave during a year's time for the birth or adoption of a child, family health needs or personal illness. The employer must allow the employee to return to the same position or a position similar to that held before taking the leave. There are exceptions to the FMLA: the most notable is that only employers with 50 or more employees are covered--about half the workforce.

Latin for 'friend of the court.' This term describes a person or organization that is not a party to a lawsuit as plaintiff or defendant but that has a strong interest in the case and wants to get its two cents in. For example, the ACLU often submits materials to support a person who claims a violation of civil rights even though that person is represented by a lawyer.

A corporation owned and operated by a few individuals, often members of the same family, rather than by public shareholders. State laws permit close corporations to function more informally than regular corporations. For example, shareholders can make decisions without holding meetings of the board of directors, and can fill vacancies on the board without a vote of the shareholders.