index
1. [ noun ] a numerical scale used to compare variables with one another or with some reference number
Related terms: scale margin_of_error
2. [ verb ] list in an index
Related terms: list cross-index
3. [ 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: indicator indicant index_number
Related terms: fact leading_indicator Dow_Jones price_index short_account stock_index business_index
4. [ noun ] (mathematics) a mathematical notation indicating the number of times a quantity is multiplied by itself
Synonyms: power exponent
Related terms: mathematical_notation degree logarithm
5. [ noun ] an alphabetical listing of names and topics along with page numbers where they are discussed
Related terms: list concordance back_matter key_word
6. [ verb ] provide with an index, as of a book
Related terms: supply publication indexing
7. [ verb ] adjust through indexation
Examples:

"The government indexes wages and prices"

Related terms: determine
8. [ noun ] (anatomy,zoology) the finger next to the thumb
Synonyms: index_finger forefinger
Related terms: finger
Similar spelling:   indexer
  indexing
  indecent
  integer
  intake
  induce