Words / B1

IND-eks/ˈɪndeks/

An index is an alphabetical list at the back of a book, or a number that tracks prices or performance: a cost-of-living index; the share index. Table of contents is at the front. Indices or indexes are both used as plurals. Energy jumps lift the cost-of-living index.

Meaning

A list at the back of a book; also a number that tracks prices or performance (a cost-of-living index).

Examples

• “The cost-of-living index rose again after the energy jump.”
• “Use the index, not random flipping, to find the case study.”

Good to know

a book index; a cost-of-living / price index. Plural: indexes or indices. Front list: contents. Economics / exam books.

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