One of eighty-one equal parts of a whole.

The ordinal form of the number hundred one.

The person or thing in the hundred-first position. / One of a hundred one 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.

The ordinal form of the number seventy-one, describing a person or thing in position number 71 of a sequence.

One of seventy-one equal parts of a whole.

(historical, politics) Those countries aligned with the West during the Cold War, particularly in contrast to those aligned with the East (Second World).

(film, television, video games) Visual presentation through the protagonist or principal character's own eyes.

(grammar) Forms of pronouns or verbs used for the speaker or writer of the sentence in which they occur.