(Greek: six days work)
The account, in Genesis 1, of the formation of the world.
On three days God separates: light from darkness; water above from water below; water from dry land.
On three more God peoples the world with living beings.
The presentation of God's work in six natural days is stylistic embellishment of the essential truth that the world comes from God, and allegorical: as God did, so should man work six days and rest after that.
No clash between Bible and science is possible.
New Catholic Dictionary