seventy-third adjective 1noun 1forms 1 adjective1 •The ordinal form of the number seventy-three, describing a person or thing in position number 73 of a sequence.The answer appears on the seventy-third page of the book.She finished seventy-third in the race. noun1 •One of seventy-three equal parts of a whole.A seventy-third of 1460 is 20. formsseventy-thirds
