index

/ˈɪndɛks/ · 2 syllables

Meaning

noun

1. a numerical scale used to compare variables with one another or with some reference number
2. 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
3. a mathematical notation indicating the number of times a quantity is multiplied by itself
4. an alphabetical listing of names and topics along with page numbers where they are discussed
5. the finger next to the thumb

verb

1. list in an index
2. provide with an index
   “index the book”
3. adjust through indexation
   “The government indexes wages and prices”

Synonyms for index

• index number
• indicant
• indicator
• exponent
• power
• index finger
• forefinger