next after the seventy-second; being the ordinal number for 73.
being one of 73 equal parts.
noun
a seventy-third part, especially of one (1/73).
the seventy-third member of a series.
Words nearby seventy-third
seventy-second, seventy-seven, seventy-seventh, seventy-six, seventy-sixth, seventy-third, seventy-three, seventy-two, seven-up, Seven Wonders of the Ancient World, Seven Wonders of the World