Definition, Meaning & Synonyms

index

noun
/ˈɪn.dɛks/
Definition
An index is a list or catalog that organizes information, typically providing a way to reference items such as books, documents, or data.
Examples
  • The index at the back of the textbook helped me find the information I needed for my research.
  • Email databases often include an index to facilitate fast searches.
  • The stock market index reflects the performance of a specific group of stocks.
Meaning
In various contexts, it can refer to a system or tool for identifying or locating information quickly.
Synonyms
  • catalog
  • directory
  • list
  • register
  • guide