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Wordage.info / index

Exact Match:

the finger next to the thumb
an alphabetical listing of names and topics along with page numbers where they are discussed
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
a numerical scale used to compare variables with one another or with some reference number
adjust through indexation; "The government indexes wages and prices"
provide with an index; "index the book"
list in an index