to create, to bring into being; in the New Testament always God's act.
This is the New Testament's main word for creating. Like the Hebrew word it translates, it is used only of God: God is the Creator, and everything else is what he created. Paul can sum up a whole quarrel in one line, that people worshiped and served the creature rather than the Creator.
It looks in two directions. Backward, it names the original making of the world and everything in it, heaven and earth and sea, food and marriage and humankind. Forward, it names a second creation: in Christ, God makes a person new, and even fuses former enemies into one new humanity.
That second use is the striking one. The same verb for making the universe is used for what God does inside a believer, so that becoming new is not self-improvement but an act of creation, as much God's own work as the world itself.