Denotes more.

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, for example to report an important late-breaking event.

(cricket) A run scored without the ball having hit the striker's bat - a wide, bye, leg bye or no ball.

(acting) A supernumerary or walk-on in a film or play.

(slang) The state or trait of being over the top, of behaving in an overly dramatic manner.

Something of an extra quality or grade. (Can we add an example for this sense?)

(not comparable) Beyond what is due, usual, expected, or necessary; extraneous; additional; supernumerary.

(comparable, slang) Over the top; going beyond what is normal or appropriate, often in a dramatic manner.

(informal) To an extraordinary degree.