A person held against their will is being held, hostage.

A person known for their accomplishments for generations is known as a legacy.

When a group of people gather together to discuss the government concerns of the economy or social issues is called a think tank.

In any professional sport, there is always an official watching over the game.

The legal breakup of a married couple is called a divorce.

The main entrance hallway of a business building is called the concourse.

Any type of drink outside your home is called a beverage.

A graduate of a college or university is part of the alumni of the institution. 

I called my former student Joshua, " a sleeping diamond". 

Never forget to omit your signature on a lottery ticket.