thirty–first
Definition of thirty–first
1 : being number 31 in a countable series the thirty-first day — see number table
2 : being one of 31 equal parts into which anything is divisible a thirty-first share of the money
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thirty–first
Definition of thirty–first
1 : number 31 in a countable series the thirty-first of the month
2 : the quotient of a unit divided by 31 : one of 31 equal parts of anything one thirty-first of the total
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