index (Plural "indices" or "indexes")
1. (programming) A number used to select an element of a list, vector, array or other sequence. Such indices are nearly always non-negative integers but see associative array. 2. (database) See inverted index. [Other kinds?] 3. (web) A search engine. 4. (web) A subject index. [Jargon File] Last updated: 1997-04-09