Index term, a term used as a keyword to retrieve documents in an information system such as a catalog or a search engine
Spam filters that come with email clients have both whitelists and blacklists of senders and keywords to look for in emails.
Science Citation Index | Human Development Index | term limit | Roud Folk Song Index | Index Ventures | index | Academic term | Index term | Index on Censorship | Index Librorum Prohibitorum | For the Term of His Natural Life | LuxX Index | Long Term Parking | Index (publishing) | Index (database) | Index | FTSE 250 Index | Fixed-term Parliaments Act 2011 | Eyre (legal term) | Cook Partisan Voting Index | Cobla (Occitan literary term) | AEX index | A Certain Magical Index | Trinity term | term of office | Stock market index | stock market index | Ministry of Health and Long-Term Care | Miller index | Long-term video-EEG monitoring |
Polythematic Structured Subject Heading System (abbreviated as PSH from the Czech Polytematický Strukturovaný Heslář) is a bilingual Czech–English controlled vocabulary of subject headings developed and maintained by the National Technical Library (the former State Technical Library) in Prague.
Search boxes on web pages are usually used to allow users to enter a query to be submitted to a Web search engine server-side script, where an index database is queried for entries that contain one or more of the user's keywords.