challenge - v. to test the ability, skill, or strength of (someone or something)
charity - n. a organization that helps people in need
fitness - n. the condition of being physically fit and healthy
goal - n. something that you are trying to do or achieve
habit - n. something that a person does often in a regular and repeated way
marathon - n. a running race that is about 26 miles (42 kilometers) long
medal - n. a piece of metal often in the form of a coin with designs and words in honor of a special event, a person, or an achievement
race - n. a competition between people, animals or vehicles to see which one is fastest
special - adj. different from what is normal or usual
train - v. to try to make yourself stronger, faster, or better at doing something before competing in an event or competition