expert
/ˈek.spɜːt/(noun)
AWL Sublist 6CEFR B2IELTS Band 7.0 - 9.0
Academic Definition
A person who has comprehensive and authoritative knowledge of or skill in a particular area.
Key Academic Collocations
Click to copyWord Family & Derivatives
expertexpertlyexpertise
Lexical Alternatives (Synonyms)
specialistauthorityconnoisseurpunditvirtuoso
Academic Sample Sentences in Context
"Leading environmental experts convened by the United Nations warned that global emissions must peak before 2030."
"The chart contrasts the proportion of engineering firms citing a critical deficit of specialized technical expertise."
"Policymakers should formulate public health regulations based on peer-reviewed expert consensus rather than political expediency."
IELTS Examiner Scoring Strategy (Lexical Resource)
'According to leading experts in the field...' is an authoritative way to introduce arguments in Task 2.