More than what is usual, or than what is due, appointed, or expected; supplementary; additional; supernumerary: as, an extra price; an extra edition of a newspaper; extra diet; extra charges at a boarding-school.n. Something in addition to what is usual or expected; something over and above the usual course or charge, or beyond what is usual.n. Specifically An edition or a copy of a newspaper issued at an unusual hour to convey special intelligence.Beyond the ordinary standard or measure; extraordinarily; unusually; uncommonly: as, this is done extra well; that is an extra high price.A prefix of Latin origin, originally an adverb and preposition, meaning ‘outside, beyond.’ ;n. In cricket, a score or run not made from the bat, as a bye or a wide: usually in plural.Used in trade to denote a size somewhat larger than that, mentioned: as, extra elephant folio; extra foolscap octavo.