ペーパー (pēpā) means “paper” | MotiTan Japanese Dictionary

More examples

使い終わったペーパーを分別して捨てます。tsuka i o wa tta pē pā o bun betsu shi te su te ma su

I sort and throw away the paper after using it.

Refers to a thin, flexible material that carries writing or images and can also be folded, cut, or used to wrap things.

紙kami: The everyday Japanese word for material used to write, print, draw, or wrap objects.

文字を書いたり印刷したりするために用いる薄い材料。moji o ka i ta ri in satsu shi ta ri su ru ta me ni mochi i ru usu i zai ryō

The Japanese noun ペーパー (pēpā) is borrowed from English paper, which comes through Old French papier from Latin papyrus.

In everyday English, paper usually names the material in general, while one individual sheet is commonly called a piece of paper.