Romans 5:14 — Nevertheless death reigned from Adam to Moses, even over them that had not sinned after the similitude of Adam's transgression, who is the figure of Him that was to come.
Death is personified as a tyrant.
Adam's sin was breaking God's law, but that wasn't the case with those between Adam and Moses. Their deaths were a result of Adam's sin.
Figure = type, mold, pattern — impression made by a blow with a hammer
Adam was a type of Christ becasue he had headship as a progenitor, but the analogy shouldn't be carried too far — watch for the "not as" in the next verse.