Refers to the category used to distinguish between the speaker, the person being addressed, and others in a conversation, such as 第一人称 dì​yī​rén​chēng, 第二人称 dì'èr​rén​chēng, or 第三人称 dì​sān​rén​chēng

A word used to replace or point to a noun or phrase, including personal, demonstrative, and interrogative types.