Genesis has multiple meanings depending on the context. Here are some definitions:

• Book of Genesis: The Book of Genesis is the first book of the Hebrew Bible and the Christian Old Testament. It is an account of the creation of the world, the early history of humanity, and of Israels ancestors and the origins of the Jewish people.

• Origin or coming into being of something: This is the most common definition of genesis. For example, the genesis of hip-hop music was the party scene in New York Citys South Bronx in the 1970s.

• Beginning, birth, or creation: This is another definition of genesis. For instance, the genesis of something is its beginning, birth, or creation.

• Central creation story: Genesis is a central creation story for the religious traditions of Judaism, Christianity, and Islam. It tells of the origins of the universe and the earth and its plant and animal inhabitants.

• First book of the Bible: Genesis is the first book of the Bible, dealing with the Creation and the Patriarchs.

In summary, Genesis can refer to the first book of the Bible, the origin or coming into being of something, the beginning, birth, or creation of something, a central creation story, or the Jewish, Christian, and Islamic religious traditions.