Significado de "expert" - Learner’s Dictionary

expert

noun [ C ] us uk /ˈekspɜːt/
an independent experta martial arts expertI'm not an expert by any means.When it comes to baking cakes, she's an expert.He's an expert in the field of biochemistry.

B1 someone who has a lot of skill in something or a lot of knowledge about something:

He's an expert on Japanese literature.
Show me how to use this computer - You're the expert.

(Definición de expert noun del Cambridge Learner's Dictionary © Cambridge University Press)