I. | ̷ ̷ ̷ ̷| ̷ ̷ adjective
1. : being number 29 in a countable series
the twenty-ninth day
— see number table
2. : being one of 29 equal parts into which something is divisible
a twenty-ninth share of the money
II. noun
1. : number 29 in a countable series
the twenty-ninth of the month
2. : the quotient of a unit divided by 29 : one of 29 equal parts of something
one twenty-ninth of the total