I ate one-quarter of the pizza.

She ate one-sixth of the pizza.

I ate one-eighth of the pizza.

I ate one-half of the pizza.

I ate one-fourth of the pizza.

I ate one-third of the pizza.

I have several one-pieces in my wardrobe.

He was a one-gallused cowboy, always wearing his pants with only one suspender.

The Law of One is a spiritual philosophy that promotes the idea of unity and oneness.

I have only one apple left.