noun🔗ShareGreat skill or knowledge in a particular field or hobby."The scientist has expertise in the field of nuclear fusion."abilityjobbusinesseducationachievementsciencetechnicalindustryChat with AIVocabulary GamePractice Reading
noun🔗ShareAdvice, or opinion, of an expert."The teacher's expertise on ancient history was valuable to the students. "abilityjobbusinessworkeducationsciencetechnicalChat with AIVocabulary GamePractice Reading
