Lex.
law
lex
law
law
law
A three-letter word that means "rules" is law.Some example sentences are:Police officers enforce the law.The law states that you must not steal.
perhaps the word, res. which means: Matter, affair, thing, circumstance
The seven-letter word "written" is "lawyers." It relates to the legal profession, where lawyers interpret and apply the law.
law
Law
law
enact.