| index | (noun) the finger next to the thumb | Synonyms: forefinger, index finger |
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| (noun) an alphabetical listing of names and topics along with page numbers where they are discussed | - |
| (noun) 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 | Synonyms: index number, indicant, indicator |
| (noun) a mathematical notation indicating the number of times a quantity is multiplied by itself | Synonyms: exponent, power |
| (noun) a numerical scale used to compare variables with one another or with some reference number | - |
| indexation | (noun) a system of economic regulation: wages and interest are tied to the cost-of-living index in order to reduce the effects of inflation | - |
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| indexer | (noun) someone who provides an index | - |
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| indexing | (noun) the act of classifying and providing an index in order to make items easier to retrieve | - |
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| spandex | (noun) an elastic synthetic fabric | - |
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