# expertise

/ˌɛkspɝˈtiz/ (US) · /ˌɛkspətˈiːz/ (UK)

Source: https://englishreference.com/word/expertise
Updated: 2026-06-19

## Senses

### 1. skill or knowledge

noun · CEFR B2

the high level of skill or knowledge you have in a particular subject.

For teachers: specialized skill or technical knowledge in a particular field. Usually uncountable, though occasionally used countably to refer to specific areas of mastery.

- The company hired her because of her expertise in digital marketing.
- The project required a high degree of technical expertise that few consultants in the region could provide.

Usage: Commonly followed by the preposition 'in'.

### 2. expert advice

noun · CEFR C1 · Formal

the advice or opinion given by an expert.

For teachers: the professional advice or formal opinion provided by a specialist or expert.

- We need to seek legal expertise before we sign this contract.
- The government relied on the expertise of independent scientists to draft the new environmental regulations.

Teaching tip: In this sense, 'expertise' is often used as a more formal synonym for 'advice' or 'input' in professional settings.

## Examples

- She has a lot of expertise in computer programming.
- The company is looking for a consultant with specific expertise in international tax law to help with the merger.
- While many claim to be authorities on the subject, few possess the technical expertise required to navigate the ethical implications of genetic engineering.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.