To legislate means to make or pass laws. When members of Congress legislate, they debate, write, and vote on bills that might become official laws for the country. State legislatures legislate for their states, and city councils legislate for their cities.

When a government body legislates, it's doing its fundamental job: deciding what rules everyone must follow. For example, Congress might legislate new safety standards for cars, or a state legislature might legislate how old you must be to get a driver's license.

You'll also hear people say “you can't legislate morality” or “you can't legislate common sense,” meaning that while laws can require or forbid certain actions, they can't force people to be good or wise. A law might legislate that you can't steal, but it can't legislate kindness.

The process of legislating involves compromise, debate, and careful attention to how laws will affect real people. It's slow work by design: before something becomes law, many people study it, argue about it, and try to improve it. This careful process helps prevent bad laws from being passed too quickly.