extra

extra

I. ex‧tra1 S1 W2 /ˈekstrə/ BrE AmE adjective
[Date: 1600-1700; Origin: Probably from extraordinary]
1. [only before noun] more of something, in addition to the usual or standard amount or number:
Could you get an extra loaf of bread?
Allow extra time for your journey.
Drivers are advised to take extra care.
Residents can use the gym at no extra cost.
an extra ten minutes/three metres etc
I asked for an extra two weeks to finish the work.
2. [not before noun] if something is extra, it is not included in the price of something and you have to pay more for it OPP included:
Dinner costs $15 but wine is extra.
• • •
THESAURUS
▪ extra in addition to the usual or standard cost, time, amount etc: They let the kids stay up an extra hour. | Some stores charge extra for delivery. | Postage is extra.
▪ additional [only before noun] more than the basic amount or the amount that you expected or agreed. Additional is more formal than extra: An evening job would provide additional income. | There may be an additonal charge for paying bills by credit card.
▪ added [only before noun ] extra – used when talking about something that makes something better or more effective: an added benefit | an added precaution | It was a beautiful place, and the good weather was an added bonus. | Use a sunscreen for added protection.
▪ spare [only before noun] kept in addition to the one you usually use, so that it is available if the one you usually use breaks, gets lost etc: a spare key | a spare tyre | a spare set of clothes