a coming into being
"The genesis of the new policy was marked by months of secret discussions among the committee members."
the first book of the Old Testament: tells of Creation; Adam and Eve; the Fall of Man; Cain and Abel; Noah and the flood; God's covenant with Abraham; Abraham and Isaac; Jacob and Esau; Joseph and his brothers
"The Genesis narrative begins with the creation of the world and follows the lives of early patriarchs like Abraham, Isaac, and Jacob."
The origin, start, or point at which something comes into being.
"The artist traced the genesis of her new sculpture back to a simple sketch made years ago."
In plain English: Genesis is the beginning of something new, especially how it started from nothing.
"The genesis of their friendship began with that chance meeting at the coffee shop."
Usage: Use genesis to refer specifically to the beginning or cause of an event rather than its general development over time. It is often confused with geneses when referring to multiple origins, though singular usage typically suffices in everyday contexts.
The first book in the Hebrew Bible.
"Scholars often compare the creation stories in Genesis to those found in other ancient Near Eastern texts."
Borrowed from Latin genesis ("generation, nativity"), from Ancient Greek γένεσις (génesis, "origin, source, beginning"). Related to Ancient Greek γίγνομαι (gígnomai, "to be produced, become, be"). Doublet of kind, gens, and jati.