RhymeZone: index definitions

Definitions of index:

noun: the finger next to the thumb
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
noun: a numerical scale used to compare variables with one another or with some reference number
noun: a mathematical notation indicating the number of times a quantity is multiplied by itself
verb: provide with an index
Example: "Index the book"
verb: list in an index
verb: adjust through indexation
Example: "The government indexes wages and prices"