What's the difference between his and yis?

His

Definition:

• (pron.) Belonging or pertaining to him; -- used as a pronominal adjective or adjective pronoun; as, tell John his papers are ready; formerly used also for its, but this use is now obsolete.
• (pron.) The possessive of he; as, the book is his.

Example Sentences:

Yis

Definition:

• (adv.) Yes.

Example Sentences: