index number


Definition of index number 

: a number used to indicate change in magnitude (as of cost or price) as compared with the magnitude at some specified time usually taken as 100

Examples of index number in a Sentence

Recent Examples on the Web

The crime index numbers from the FBI and DPS aggregate reported crimes from Arizona law enforcement agencies. Kelcie T Grega, azcentral, "Fact Check: Did SB 1070 reduce crime in Arizona?," 20 Apr. 2016 The index numbers are based on the close of trading in New York Wednesday. Brendan Coffey,, "Bill Gates's Philanthropy Could Lose Him His Spot as the World's Richest," 12 Oct. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'index number.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of index number

1875, in the meaning defined above

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The first known use of index number was in 1875

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