Something additional, such as an item above and beyond the ordinary school curriculum, or added to the usual charge on a bill.
An extra edition of a newspaper, which is printed outside of the normal printing cycle.
A run scored without the ball having hit the striker's bat - a wide, bye, leg bye or no ball.
A supernumerary or walk-on in a film or play.
Something of an extra quality or grade.
Beyond what is due, usual, expected, or necessary; extraneous; additional; supernumerary.
Extraordinarily good; superior.
Over the top; going beyond what is normal or appropriate, often in a dramatic manner.
To an extraordinary degree.