based on custom rather than documentation; "an unwritten law"; "rites...so ancient that they well might have had their unwritten origins in Aurignacian times"- J.L.T.C.Spence
any activity that is performed in an especially solemn elaborate or formal way; "the ceremony of smelling the cork and tasting the wine"; "he makes a ceremony of addressing his golf ball"; "he disposed of it without ceremony"
the proper or conventional behavior on some solemn occasion; "an inaugural ceremony"
a formal event performed on a special occasion; "a ceremony commemorating Pearl Harbor"
a pitch that is not in the strike zone; "he threw nine straight balls before the manager yanked him"
the game of baseball
round object that is hit or thrown or kicked in games; "the ball travelled 90 mph on his serve"; "the mayor threw out the first ball"; "the ball rolled into the corner pocket"
a spherical object used as a plaything; "he played with his rubber ball in the bathtub"
a more or less rounded anatomical body or mass; "the ball at the base of the thumb"; "he stood on the balls of his feet"
a lavish dance requiring formal attire
a compact mass; "a ball of mud caught him on the shoulder"
the people assembled at a lavish formal dance; "the ball was already emptying out before the fire alarm sounded"
United States comedienne best known as the star of a popular television program (1911-1989)
an object with a spherical shape; "a ball of fire"
form into a ball by winding or rolling; "ball wool"
the act of starting a new operation or practice; "he opposed the inauguration of fluoridation"; "the startup of the new factory was delayed by strikes"
the ceremonial induction into a position; "the new president obviously enjoyed his inauguration"
the act of starting something for the first time; introducing something new; "she looked forward to her initiation as an adult"; "the foundation of a new scientific society"; "he regards the fork as a modern introduction"
a formal entry into an organization or position or office; "his initiation into the club"; "he was ordered to report for induction into the army"; "he gave a speech as part of his installation into the hall of fame"