What does codify mean in legal terms?

codify means: Organise or plan systematically; especially, in writing. (in Merlin Dictionary)

What else does codify mean?

• A form used to express or establish a standard or conventional formulation. (in Merlin Dictionary)
• A common law practice or requirement is to be made law. (in Merlin Dictionary)
• V. To organize and label a system or laws. (in Legal Dictionary)