Other Words for Extra
Extra as a Adjective has these synonyms:
Example: As an extra, each customer receives a free ball-point pen.
supplement, mark-up, surcharge, kicker
Example: There is an extra if you want bread and butter.
Extra as a Noun has these synonyms:
additionally, again, more, in addition
Example: They charge extra for room service.
supernumerary, walk-on, super, spear-carrier
Example: One could scarcely call being an extra a 'Hollywood career'.
uncommonly, unusually, exceptionally, unexpectedly, extraordinarily, remarkably, notably, surprisingly, amazingly, very, particularly, especially, extremely, strikingly
Example: Teacher said that Philip was extra good today.
Extra as a Verb has these synonyms:
additional, added, auxiliary, accessory, supplementary, supplemental, further, ancillary, subsidiary, collateral, adventitious
Example: We had an extra person for dinner. Zenobia has an extra toe on each foot.
Example: After all were served, we had two extra desserts.