index
Index (Latin for "index finger, index number"), plural indices or indexes , stands for:
- Register (reference work) , organized directory
 - Key figure , comparative value
 - Index (semiotics) , reference signs
 - Database index , development of data stocks
 - In computer science, a value specification for addressing an element, see field (data type) #Indices
 - Index finger , a technical term in medicine
 - Graduation on a dial
 - ☞, as a symbol or punctuation mark, see index finger #Typography and EDP
 
in censorship
- Black list , colloquially a negative directory
 - Index Librorum Prohibitorum , a defining Catholic index of forbidden books
 - Directory of works classified as dangerous in Germany, see Federal Testing Office for Media Harmful to Young People
 
in mathematics:
- Index (group theory) , number of secondary classes
 - mathematical numbering element, see index set (mathematics)
 - Thickness of an equivalence relation, see equivalence relation # Amount of equivalence classes and index
 - Index of a vector field, see Poincaré-Hopf theorem #Index of a vector field
 - analytical index of a differential operator, see Fredholm operator
 - topological invariant in function theory, see rotation number (mathematics)
 - Signature of a bilinear form, see signature (linear algebra)
 - a characteristic feature of a quadratic set in geometry
 
Facilities:
- Index - word and effect , collective of Swiss authors
 - Index-Werke , German group of companies
 - Index (discotheque) , discotheque in Schüttorf, Lower Saxony
 - Index.hu , Hungarian news portal
 
geographical objects:
- Index (Washington) , a city in the United States
 - Index Peak , mountain in Graham Land, Antarctica
 - Index Point , headland on the Borchgrevink Coast of the Victoria Land, Antarctica
 
See also:
- List of all Wikipedia articles whose title begins with an index
 - List of all Wikipedia articles whose title contains index
 - Indexing (keywording)
 
Wiktionary: Index  - explanations of meanings, word origins, synonyms, translations