ˈɪndɛks

Definitions

1. noun

a list of topics with their corresponding page numbers in a book, or a numerical value representing a level or amount

“The book had a detailed index at the back with all the chapters listed.”

2. verb

to provide or create an index for something

“The librarian indexed the entire book collection for easier searching.”

3. noun

a finger or digit, especially the middle or index finger

“She used her index finger to point at the map.”

4. noun

a statistical measure used to quantify the likelihood of an event occurring

“The index of the stock market has been fluctuating wildly lately.”