Extra1. (a.) Beyond what is due, usual, expected, or necessary; additional; supernumerary; also, extraordinarily good; superior; as, extra work; extra pay.
2. (n.) Something in addition to what is due, expected, or customary; something in addition to the regular charge or compensation, or for which an additional charge is made; as, at European hotels lights are extras.
Thesaurus Entries
above, accessory, accident, accidental, added, addendum, addition, additional, additionally, adjunct, adscititious, adventitious, again, all included, also, altogether, amazingly, among other things, ancillary, and all, and also, and so, another, appendage, appurtenance, appurtenant, as a bonus, as well, ascititious, au reste, auxiliary, balance, beside, besides, beyond, bit player, bonus, casual, circumstantial, collateral, considerably, contingency, contingent, contributory, daily, daily newspaper, de trop, decoration, dividend, else, en plus, especially, exceptionally, excess, extra added attraction, extra dash, extra edition, extraordinarily, extremely, farther, figurant, figurante, filigree, filling, fillip, flourish, for lagniappe, fortuitous, fresh, frill, further, furthermore, gazette, gratuity, happenstance, held back, held in reserve, held out, in abeyance, in addition, in hand, incidental, inessential, inter alia, into the bargain, item, kicker, lagniappe, leftover, likewise, margin, markedly, mere chance, mint, more, moreover, mute, national newspaper, neighborhood newspaper, new, news, newspaper, newspaper of record, nonessential, not-self, notably, noticeably, occasional, odd, off, on the side, on top of, original, ornament, other, out-of-the-way, over, over and above, overage, overmeasure, overplus, overrun, overset, overstock, oversupply, padding, paper, part-time, particularly, plus, pourboire, premium, pristine, put aside, put by, rag, rarely, remainder, remaining, remarkably, reserve, saved, secondary, sheet, side, similarly, something extra, spare, spear-carrier, special, special edition, stand-in, standby, stored, strikingly, stuffing, subsidiary, substitute, supe, super, superadded, superaddition, superfluous, supernumerary, supervenient, supplement, supplemental, supplementary, support, supporting actor, supporting cast, surcharge, surplus, surplusage, surprisingly, suspended, tabloid, then, therewith, tip, to boot, to spare, too, trimming, twist, ulterior, unapplied, unbeaten, uncommon, uncommonly, unconsumed, understudy, unemployed, unessential, unexercised, unexpectedly, unexpended, unhandled, unspent, untapped, untouched, untrodden, unused, unusually, unutilized, very, waived, walk-on, walking gentleman, weekly, weekly newspaper, wrinkle, yet