The document that's created by a society to define and organize its government is called a social contract and the constitution. In both, you define how the government looks like and what the government will do in order to ensure the society to function normally.
Travis could be described as transgender if they feel more woman than man, but if they they don’t then they’d be described as a cross-dresser.
Maybe you could try and use a little grammar, and make the question clearer.
