expertise

expertise — noun

1. the deep understanding and practical ability that someone gains through training

1.名詞B2
釋義

the deep understanding and practical ability that someone gains through training and long experience in a particular field

例句

Dr. Yan's expertise in heart surgery saved the young patient's life.

expertise in + field of medicine

Over twenty years, Rania developed her expertise in environmental law.

develop expertise in [field] over [time]

同義詞
  • skill

    broader and more general; skill can refer to any learned ability, while expertise implies a deeper, specialist level

  • know-how

    informal register; focuses on practical, hands-on knowledge rather than theoretical understanding

  • proficiency

    emphasises competence measured against a standard; often used for languages or technical tasks

  • mastery

    implies complete control and comprehensive understanding, a level beyond expertise

反義詞

文法句型

expertise in + field/activity

用法筆記

Frequently uncountable; not used with 'a' or 'an' in most contexts. The preposition 'in' is the most common pattern (expertise in something), though 'on' also appears when referring to a topic (expertise on global trade).

常見錯誤

❌She has an expertise in marketing.
✅She has expertise in marketing.
💡'expertise' is uncountable and does not take an indefinite article.
❌He has many expertises in different fields.
✅He has expertise in many different fields.
💡'expertise' is not commonly used in the plural.