- index
- [[t]ɪ̱ndeks[/t]]
♦♦♦indices, indexes, indexing, indexed(The usual plural is indexes, but the form indices can be used for meanings 1, 5, and 6.)1) N-COUNT: with supp An index is a system by which changes in the value of something and the rate at which it changes can be recorded, measured, or interpreted.
The UK retail price index for October is expected to show an increase of 0.8 per cent.
...economic indices.
2) N-COUNT An index is an alphabetical list that is printed at the back of a book and tells you on which pages important topics are referred to.Curiously, the word `gay' does not occur in the index...
There's even a special subject index.
3) VERB If you index a book or a collection of information, you make an alphabetical list of the items in it.[be V-ed] A quarter of this vast archive has been indexed and made accessible to researchers...
[V-ed] Painters and sculptors are indexed separately...
[V n] She's indexed the book many different ways - by author, by age, and by illustrator.
4) VERB: usu passive If a quantity or value is indexed to another, a system is arranged so that it increases or decreases whenever the other one increases or decreases.[be V-ed to n] Minimum pensions and wages are to be indexed to inflation.
5) N-COUNT: usu N of/to n If one thing is an index of another, it indicates what the other thing will be like. [FORMAL]Weeds are an index to the character of the soil.
6) N-COUNT In mathematics, indices are the little numbers that show how many times you must multiply a number by itself. In the equation 32 = 9, the number 2 is an index. [TECHNICAL]7) → See also card index
English dictionary. 2008.