extraa. Beyond what is due, usual, expected, or necessary; additional; supernumerary; also, extraordinarily good; superior; as, extra work; extra pay.(H. Spencer.)n.1. Something in addition to what is due, expected, or customary; esp., an added charge or fee, or something for which an additional charge is made; as, at some hotels air conditioning is an extra.()2. An edition of a newspaper issued at a time other than the regular one.()3. (Cricket) A run, as from a bye, credited to the general score but not made from a hit.()4. Something of an extra quality or grade.()