expertise
/ˌɛkspɚˈtiːs/noun
Great skill or knowledge in a particular field or hobby.
Example sentence
- “The scientist has expertise in the field of nuclear fusion.”
Related words
mentorA wise and trusted counselor or teacher.skillA capacity to do something well; a technique, an ability, usually acquired or learned, as opposed to abilities that are regarded as innate.traineeSomeone who is still in the process of being formally trained in a workplace.credentialDocumentary or electronic evidence that a person has certain status or privileges.apprenticeA trainee, especially in a skilled trade.qualificationThe act or process of qualifying for a position, achievement etc.