Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun index_number

1 sense of index number

Sense 1
index, index number, indicant, indicator -- (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)
       => fact -- (a statement or assertion of verified information about something that is the case or has happened; "he supported his argument with an impressive array of facts")