seventieth Meaning, Definition & Usage

  1. noun position 70 in a countable series of things
  2. adjective satellite the ordinal number of seventy in counting order
    70th.

WordNet

Sev"en*ti*eth adjective
Etymology
AS. hund-seofontigo&edh;a.
Definitions
  1. Next in order after the sixty-ninth; as, a man in the seventieth year of his age.
  2. Constituting or being one of seventy equal parts.
Sev"en*ti*eth noun
Definitions
  1. One next in order after the sixty-ninth.
  2. The quotient of a unit divided by seventy; one of seventy equal parts or fractions.

Webster 1913