What is the difference between epistemology and ontology in philosophy?

Epistemology and ontology are two important branches of philosophy that deal with knowledge and existence respectively. While epistemology is concerned with the nature of knowledge and the ways in which we acquire it, ontology is concerned with the nature of existence and the different kinds of things that exist in the world.

The main difference between epistemology and ontology is that epistemology is concerned with questions of knowledge and truth, while ontology is concerned with questions of existence and being. Epistemology deals with questions such as 'What is knowledge?', 'How do we acquire knowledge?', and 'What is the relationship between knowledge and truth?', while ontology deals with questions such as 'What exists?', 'What kinds of things exist?', and 'What is the nature of reality?'

In other words, epistemology is concerned with the study of knowledge and the ways in which we come to know things, while ontology is concerned with the study of existence and the different kinds of things that exist in the world.