Introducing a list. The colon is used to introduce a list of items. The bookstore specializes in three subjects: art, architecture, and graphic design. Do not, however, use a colon when the listed items are incorporated into the flow of the sentence.
Definition of medal for Students. : a piece of metal often in the form of a coin with design and words in honor of a special event, a person, or an achievement.
Today, there are three different types of Medals of Honor: the original simple star-shaped medal first established in 1862 which the Navy, Marine Corps and Coast Guard have retained; a wreath version designed in 1904 for the Army; and an altered wreath version for the Air Force, designed in 1963 and adopted in 1965.