extra · adjective /ˈek.strə/
extra
A2 more, or more than usual
Dictionary examples:
She babysits to earn a little of extra cash.
He needs extra help with his English.
The price includes travel and hotel, but meals are extra.
Learner example:
You only have to bring an extra t-shirt. (Key English Test; A2; Turkish)
extra · adverb /ˈek.strə/
extra
B1 more
Dictionary example:
They pay her extra to work nights.
Learner example:
Will there be any special events that cost extra? (First Certificate in English; B2; Swedish)
extra · noun C /ˈek.strə/
extra (SOMETHING MORE)
B1 something that you can get with something else if you pay a little more money
Dictionary example:
A sunroof is an optional extra on this model of the car.
Learner example:
The DVD contains many extras. (Preliminary English Test; B1; Spanish)
extra (ACTOR)
C1 an actor in a who does not have a speaking part and usually plays someone in a crowd
Dictionary example:
A friend of mine is an extra on that movie.
Learner example:
A theat[er] troop at the beginning of a new project is more often than not a flabbergasting rabble of actors, technicians, extras, back-stage workers and so forth. (Certificate in Advanced English; C1; Swedish)