- a value that identifies and is used to locate a particular element within a data array or table.
- a reference table that contains the keys or references needed to address data items.
- the part of a search engine where website addresses are cataloged with their associated keywords in order to quickly retrieve the most relevant web pages when a user submits a search query.
- an exponent.
- the integer n in a radical defining the n-th root: ∛ is a radical having index three.
- a subscript or superscript indicating the position of an object in a series of similar objects, as the subscripts 1, 2, and 3 in the series x1, x2, x3.
- winding number.
- a table of contents.
- a preface or prologue.
Origin of index
OTHER WORDS FROM index
WORDS THAT MAY BE CONFUSED WITH indexappendix, index , supplement
Words nearby index
How to use index in a sentence
The changes won’t disrupt the level of the index, the company says.Salesforce, Amgen, and Honeywell Int’l will join Dow Jones Industrial Average|Andrew Nusca|August 24, 2020|Fortune
In its updated 2020 wildfire mitigation plan, SDG&E said it developed a vegetation risk index, which could help identify where it needs to do the 25-foot pruning.Watchdog Warns: SDG&E’s Tree-Trimming Plan Could Worsen Wildfires|MacKenzie Elmer|August 24, 2020|Voice of San Diego
SAC spun the index off into a separate company in 2019 to further develop the technology behind it, and is promoting its adoption by other industries.A greener and more compassionate apparel industry|Tate Ryan-Mosley|August 19, 2020|MIT Technology Review
On those two previous occasions, value beat the index by the biggest margin.The champ’s big comeback: Why beaten-down value stocks are poised to thrive|Shawn Tully|August 18, 2020|Fortune
By contrast, health care—the second-largest sector—carries a market cap of just under $4 trillion and represents only 14% of the index.‘It’s clicks versus bricks’: Why tech stocks won’t be fading anytime soon|reymashayekhi|August 17, 2020|Fortune
A helpful pictorial index provides photographs of the actual objects.
There is an expanded place-name index with more than 150,000 entries, and separate undersea, Moon, and Mars features.
He stuck his index finger in the red welt around the spot where bin Laden shot me.I Shot Bin Laden|Elliot Ackerman|November 16, 2014|DAILY BEAST
The country was ranked 144 of 177 nations surveyed by Transparency International in its 2013 graft perception index.Corruption Eats Away at Ukraine Military|Charles McPhedran|October 21, 2014|DAILY BEAST
He soon invents the “Efram Daniels Expulsion Index (EDEI) … a hybrid futures and prediction market.”In a New Novel, Apathetic Teenagers Usher in the Apocalypse|Elliot Ackerman|June 9, 2014|DAILY BEAST
The degree of pallor furnishes a rough index to the amount of hemoglobin in the corpuscle.
Wright and his followers regard the opsonic index as an index of the power of the body to combat bacterial invasion.
A low color-index probably indicates a mild type of the disease.
The color-index is thus almost invariably low, the average being about 0.5.
The changes in hemoglobin and red cells resemble those of a moderate symptomatic anemia, with rather low color-index.
British Dictionary definitions for index
- another name for exponent (def. 4)
- a number or variable placed as a superscript to the left of a radical sign indicating by its value the root to be extracted, as in ³√8 = 2
- a subscript or superscript to the right of a variable to express a set of variables, as in using x i for x 1, x 2, x 3, etc
Derived forms of indexindexer, nounindexless, adjective
Word Origin for index
Cultural definitions for index
An alphabetical list of subjects treated in a book. It usually appears at the end of the book and identifies page numbers on which information about each subject appears.