Athlete(n.) One who contended for a prize in the public games of ancient Greece or Rome.
Athlete(n.) Any one trained to contend in exercises requiring great physical agility and strength; one who has great activity and strength; a champion.
Athlete(n.) One fitted for, or skilled in, intellectual contests; as, athletes of debate.
Athletic(a.) Of or pertaining to athletes or to the exercises practiced by them; as, athletic games or sports.
Athletic(a.) Befitting an athlete; strong; muscular; robust; vigorous; as, athletic Celts.
Athletics(n.) The art of training by athletic exercises; the games and sports of athletes.
Athletism(n.) The state or practice of an athlete; the characteristics of an athlete.

Words within athletic