Bedeutung von “extra” — Learner’s Dictionary

extra

noun [ C ] us uk /ˈekstrə/
MORE

B1 something that costs more when you buy goods or pay for a service:

The hi-fi comes with optional extras such as headphones and remote control.
ACTOR

an actor in a film who does not have a main part and usually plays someone in a crowd

(Definition von “extra noun” aus dem Cambridge Learner's Dictionary © Cambridge University Press)