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index

/ˈɪndɛks/noun, verb2 syllables

Index means: 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 for index7

noun, as in 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

index number, indicant, indicator

noun, as in a mathematical notation indicating the number of times a quantity is multiplied by itself

exponent, power

noun, as in the finger next to the thumb

index finger, forefinger

What does index mean?8

noun

1

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

2

a mathematical notation indicating the number of times a quantity is multiplied by itself

3

the finger next to the thumb

4

a numerical scale used to compare variables with one another or with some reference number

5

an alphabetical listing of names and topics along with page numbers where they are discussed

verb

1

list in an index

2

provide with an index“index the book”

3

adjust through indexation“The government indexes wages and prices”

Definitions from the Open English WordNet, CC BY 4.0.

Index in a sentence

  • The interest rate is generally based on an index, such as the prime rate.CM
  • The stock price index soared to an all-time high.CK
  • Touch your nose with your left index finger.Sprakify
  • Her index and ring fingers are exactly the same length.Sprakify
  • I use numbered index cards for each student.unknown
  • The retail price index is a barometer of economic activity.CM
  • The consumer price index has been fluctuating wildly.CM
  • The price index hit an all-time high.CK

Sentences from Tatoeba, CC BY 2.0 FR, credited to their authors.

Forms of index

as a noun

plural
indices

as a verb

past tense
indexed
present participle
indexing
third-person singular
indexes
past participle
indexed