The ordinal form of the number twenty-seven.

The person or thing in the twenty-seventh position. / One of twenty-seven equal parts of a whole.

Occurring in position twenty-six; the ordinal form of the number twenty-six.

The person or thing in the twenty-sixth position. / One of twenty-six equal parts of a whole.

The ordinal form of the number twenty-three.

The person or thing in the twenty-third position. / One of twenty-three equal parts of a whole.

The ordinal form of the number twenty-two. / Lasting twenty seconds.

The person or thing in the twenty-second position. / One of twenty-two equal parts of a whole.

The ordinal form of the number twenty-one.

The person or thing in the twenty-first position. / One of twenty-one equal parts of a whole, usually written ¹⁄₂₁. / (informal) A party to celebrate a twenty-first birthday.