1. Advanced abilities and competencies acquired through extensive training, experience, and practice in a particular field or domain
She demonstrated expert skills in software development during the technical interview.
Ela demonstrou habilidades de especialista em desenvolvimento de software durante a entrevista técnica.
2. High-level proficiency that exceeds ordinary ability and reflects mastery of a subject
His expert skills in negotiation made him invaluable to the company.
Suas habilidades de especialista em negociação o tornavam inestimável para a empresa.