I. | ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷ adjective
1. : being number 27 in a countable series
the twenty-seventh day
— see number table
2. : being one of 27 equal parts into which something is divisible
a twenty-seventh share of the money
II. noun
1. : number 27 in a countable series
the twenty-seventh day of the month
2. : the quotient of a unit divided by 27 : one of 27 equal parts of something
one twenty-seventh of the total