I. ex ‧ tra 1 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.
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THESAURUS
▪ extra in addition to the usual or standard cost, time, amount etc:
They let the kids stay up an extra hour.
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Some stores charge extra for delivery.
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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.
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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
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an added precaution
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It was a beautiful place, and the good weather was an added bonus.
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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
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a spare tyre
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a spare set of clothes
II. extra 2 BrE AmE pronoun
an amount of something, especially money, in addition to the usual, basic, or necessary amount SYN more
pay/charge/cost etc extra
I earn extra for working on Sunday.
III. extra 3 BrE AmE adverb
1 . in addition to the usual things or the usual amount:
They need to offer something extra to attract customers.
one/a few etc extra
I got a few extra in case anyone else decides to come.
I’ll be making $400 extra a month.
2 . [+ adjective/adverb] used to emphasize an adjective or adverb:
You’re going to have to work extra hard to pass the exam.
an extra special effort
IV. extra 4 BrE AmE noun [countable]
1 . something which is added to a basic product or service that improves it and often costs more:
Tinted windows and a sunroof are optional extras (=something that you can choose to have or not) .
Be careful, there may be hidden extras (=additional charges which you are not told about) .
It’s got lots of useful little extras.
2 . an actor in a film who does not say anything but is part of a crowd:
He started his acting career as an extra.
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THESAURUS
▪ actor someone who performs in a play or film:
Her son wants to be an actor.
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Both my parents are actors.
▪ actress a woman who performs in a play or film. Many women prefer to be called actors rather than actresses :
Who was the actress who played Jane Eyre?
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She’s one of my favourite actresses.
▪ star a famous actor:
Julia Roberts is a famous Hollywood star.
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The hotel is popular with movie stars.
▪ the star someone who plays the most important part in a play or film:
Daniel Radcliffe is the star of the ‘Harry Potter’ films.
▪ co-star one of two or more famous actors who have important parts in a play or film:
Her co-star Jodie Foster won the Best Actress Award.
▪ the lead the main acting part in a play or film:
He will play the lead in a new version of ‘Dracula’.
▪ extra an actor in a film who does not say anything but is part of a crowd:
She started her career as an extra in TV soap operas.
▪ understudy an actor who learns a part in a play so that they can act the part if the usual actor is ill:
Vanessa had flu, and her place was taken by her understudy, Miss Lisa Fennell.