- plural form of (when used in the sense of a key to locate an element in a list, vector or matrix in computing or mathematics)
- The subscript numbers after each element are the indices of that element.
- A common convention in computing is to have indices beginning at zero, whereas in mathematics indices usually begin at one.
- 1972, American Society for Metals, Materials Science and Engineering, volumes 9–10, page 67 (Elsevier Sequoia)
- To locate any term, and to facilitate use of the dictionary by a national of any of the three languages, alphabetical indices are appended in English, French and German.
- 1976, Sidney Heath, The Romance of Symbolism and Its Relation to Church Ornament and Architecture, page 98 (Gale Research Co.; ISBN 0810343029, 9780810343023)
- Perhaps the feature which most contributes to making this a valuable reference book is the appendices and indices which are an integral part of the guide.
- 1989, TAPPI Journal, volume 72, page 204 (Technical Association of the Pulp and Paper Industry)
- Alphabetical indices of the terms in the other languages are given at the end of the book.
- 1999, Institute of Oriental Studies of the Saint-Petersburg Branch of the Russian Academy of Sciences, Manuscripta Orientalia: International Journal for Oriental Manuscript Research, volume 5, page 71 (THESA)
- The dictionary’s four indices are helpful when searching terms. These are: Hanyu Pinyin System Index; Four-Corner System Index; Radical Index; and Japanese Reading System Index.
- 2000, Russian Language Journal, volume 54, issues 177–179, page 295 (Michigan State University, Department of German & Russian)
- Its word indices makes[sic] finding individual words easy.
- Both plurals are in common use. The OED claims that when referring to a directory listing, the plural indexes should be used.
Form of the verb indicō (“indicate”).
Form of the verb indīcō (“declare”).