As it happens, natural language is "ill defined". This is an important piece of the argument for teleological justice, where the law is framed and interpreted according to the intent of the sovereign rather than some linguistic literalism.
By the involved professionals laws are commonly understood as norms, i.e. what is established through judgement in court when the instructions from the sovereign (and sometimes sources like common sense) are interpreted and applied to so called facts presented to the court during proceedings.
In this sense, what the politicians have their minions type down into some document isn't actually the law. Common law systems give judges more leeway in how to frame and interpret the sources of law than e.g. the swedish system, where politicians apply a process that produces a series of documents that explain and teleologically ground the text that parliament then votes on. This gives the sovereign a larger degree of influence over the instructions that judges use when creating law through their judgements.
As I understand it, this leeway in common law systems is thought to balance the latent tyranny of the sovereign, and function similar to constitutional courts in that judges can take the view of the people into account to a larger extent.
Not that I'd trust US jurisdictions in anything but certain business law settings, but some clever people thought and deliberated a lot when designing what they have over there.
