1. (n.)index (in a printed work) an alphabetical listing of names, places, and topics along with the numbers of the pages on which they are mentioned or discussed.
2. index a sequential arrangement of material, esp. in alphabetical or numerical order.
3. index something used or serving to point out; indication: a true index of his character.
4. index a pointer or indicator, as in a scientific instrument.
5. index a number or formula expressing a property or ratio: index of growth; index of intelligence.
6. index Math.
7. index the integern in a radical n^(1/2) defining the n-th root: 7^(1/3) is a radical having index three.
8. index a subscript or superscript indicating the position of an object in a series of similar objects, as the subscripts 1, 2, and 3 in the series x
9. index (usu. cap.) any list of forbidden or otherwise restricted material deemed morally or politically harmful by authorities.
Etymology: (1350–1400; ME < L: informer, token, list =in-in-2+dicāre to show)
Definition of 'Index'
Princeton's WordNet
1. (noun)index a numerical scale used to compare variables with one another or with some reference number
2. (noun)index, index number, indicant, indicator a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time
3. (noun)exponent, power, index a mathematical notation indicating the number of times a quantity is multiplied by itself
4. (noun)index an alphabetical listing of names and topics along with page numbers where they are discussed
5. (verb)index, index finger, forefinger the finger next to the thumb
1. (noun)index an alphabetical list of contents with page references at the back of a book Look it up in the index.
2. index a system for recording and comparing sth, especially prices the consumer price index
3. index an alphabetical list of information an index of births, marriages and deaths
Definition of 'Index'
Webster Dictionary
1. (noun)Index that which points out; that which shows, indicates, manifests, or discloses
2. (noun)Index that which guides, points out, informs, or directs; a pointer or a hand that directs to anything, as the hand of a watch, a movable finger on a gauge, scale, or other graduated instrument. In printing, a sign used to direct particular attention to a note or paragraph; -- called also fist
3. (noun)Index a table for facilitating reference to topics, names, and the like, in a book; -- usually alphabetical in arrangement, and printed at the end of the volume
Definitions of Index 
Afrikaans: indeks
Arabic: فِهْرِس، مُؤشِّر، مِقْياس
Bulgarian: показалец
Brazilian: índice
Czech: rejstřík
German: der Index
Danish: indeks
Greek: ευρετήριο
Spanish: índice
Estonian: tähestikuline register
Farsi: فهرست راهنما
Finnish: hakemisto
French: index
Hebrew: מַפתֵּח עִנייִנים
Hindi: सूचिपृष्ठ
Croatian: kazalo
Hungarian: (név- és tárgy)mutató
Indonesian: indeks
Icelandic: atriðaskrá
Italian: indice
Japanese: 索引
Korean: 색인
Lithuanian: indeksas, rodyklė
Latvian: rādītājs
Malay: indeks
Dutch: register
Norwegian: register
Polish: indeks
Persian: فهرست راهنما
Pashto: د لاړښوونی فهرست
Portuguese: índice
Romanian: indice
Russian: алфавитный указатель
Slovak: index
Slovenian: kazalo
Serbian: indeks
Swedish: register, index
Thai: ดัชนี
Turkish: dizin, fihrist
Taiwanese: 索引
Ukrainian: алфавітний покажчик
Urdu: ترتیب تہجی سے مرتب کی گئی
Vietnamese: bản chú dẫn
Chinese: 索引
