adj. 1 additional, added, auxiliary, accessory, supplementary, supplemental, further, ancillary, subsidiary, collateral, adventitious We had an extra person for dinner Zenobia has an extra toe on each foot. 2 leftover, excess, spare, surplus, unused, superfluous, supernumerary, reserve After all were served, we had two extra desserts
n. 3 addition, addendum, accessory, appurtenance, supplement, bonus, premium, dividend As an extra, each customer receives a free ball-point pen 4 supplement, US mark-up, surcharge, Slang US and Canadian kicker There is an extra if you want bread and butter 5 supernumerary, walk-on, Colloq super, spear-carrier One could scarcely call being an extra a 'Hollywood career'
adv. 6 uncommonly, unusually, exceptionally, unexpectedly, extraordinarily, remarkably, notably, surprisingly, amazingly, very, particularly, especially, extremely, strikingly Teacher said that Philip was extra good today 7 additionally, again, more, in addition They charge extra for room service