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English definition of “index”


noun [C]
(plural indices, indexes) FINANCE, ECONOMICS a system that measures the present value of something when compared to its previous value or a fixed standard: The house price index estimates the change in the value of the nation's housing stock. a bond/share/stock indexan index of sth The fund tracks an index of the UK's top 350 UK shares.
(plural indices) a sign or measure of something: an index of sth Unemployment levels provide a useful index of the state of the economy.
(plural indexes) an alphabetical list that shows you where information is found in a book, on a website, etc.: a searcheable index online indexes to articles and reports
(plural indexes) a collection of information that is stored in alphabetical order: I keep an index of all my clients' contact details.
→ See also All-Share index, All-Stock index, average earnings index, benchmark index, Brand Development Index, card index, consumer confidence index, consumer price index, cost of living index, diffusion index, the Dodge index, the Eurostoxx 50 (Index), FTSE™ 100, FTSE™ 250, FTSE™ All-Share Index, FTSE Eurotop™ 100 Index, FTSE Fledgling Index, FTSE SmallCap Index, Goldman Sachs™ Commodity Index, the Hang Seng (Index), industrial output index, industrial sentiment index, the IPOX 100 Index, misery index, Nikkei index, price index, producer price index, Purchasing Managers' index, retail price index, Russell 2000 index, share index, stock index, sustainability index, Target Group Index™, Thirty-Share Index, All-Share index, weighted index, wholesale price index
(Definition of index noun from the Cambridge Business English Dictionary © Cambridge University Press)
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