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.
American military commemorative medals, established by Congress to reward a particular individual for some noteworthy event or personal achievement, have a long and distinguished history. The first was awarded to General George Washington for his recovery of Boston on March 17, 1776.