twenty first
/ˌtwɛntiˈfɜrst/
noun
- One of twenty-one equal parts of a whole; 1/21.
- The land was divided into twenty-firsts for the heirs.
- Each member received a twenty-first of the profits.
- A twenty-first of the budget was set aside for emergencies.
- The twenty-first item in a series; the position after the twentieth.
- He was the twenty-first to finish the race.
- The twenty-first on the list was her favorite song.
- She marked the twenty-first of the month for the meeting.
adjective
- Coming after the twentieth in order or position; 21st in a sequence.
- She celebrated her twenty-first birthday with a big party.
- He was the twenty-first person to sign up for the class.
- The twenty-first century has seen rapid technological advances.