index
/ˈɪn.deks/(noun)
AWL Sublist 6CEFR B2IELTS Band 7.0 - 9.0
Academic Definition
An alphabetical list of names, subjects, or items with references to places where they occur; a sign or measure of something.
Key Academic Collocations
Click to copyWord Family & Derivatives
indexindexesindicesindexed
Lexical Alternatives (Synonyms)
indicatorgaugebenchmarkmeasuremetric
Academic Sample Sentences in Context
"The bar chart highlights national performance across the United Nations Human Development Index from 2000 to 2018."
"The Consumer Price Index rose by 6.4% year-on-year, driven by steep escalations in food and domestic utility tariffs."
"Regional air quality index readings reached hazardous emergency levels following widespread seasonal crop residue burning."
IELTS Examiner Scoring Strategy (Lexical Resource)
Note plurals: 'indexes' (in books) or 'indices' (in mathematics, economics, statistics: 'Human Development Indices').