123 synonyms for rule such as decide, act, axiom, administration, convention, administer, be the order of the day, adjudge, and adjudicate. Rule is a noun, and its antonyms are chaos and anarchy.
Act, by-law, canon, command, commandment, court order, decree, dictate, dictum, direction, directive, edict, fiat, guideline, injunction, law, mandate, order, ordinance, precept, prescription, proclamation, pronouncement, pronunciamento, regulation, requirement, ruling, statute, stipulation, and ukase.
Aphorism, axiom, maxim, precept, principle, standard, truism, and truth.
Administration, ascendancy, authority, command, control, direction, dominion, government, hegemony, influence, jurisdiction, leadership, mastery, power, raj, regime, regiment, sovereignty, supremacy, and sway.
Convention, custom, form, habit, norm, practice, praxis, procedure, protocol, routine, standard, and wont.
Administer, be at the helm, be in authority, be in charge, be in command, be in control, be in control of, be in power, be monarch, be sovereign, be the leader of, control, direct, dominate, govern, have control of, head, hold sway, lead, manage, preside over, regulate, reign, run, sit on the throne, sway, wear the crown, and wield the sceptre.
Be supreme, be the order of the day, hold sway, obtain, predominate, and prevail.
Adjudge, adjudicate, asseverate, decide, decree, determine, direct, establish, find, hold, judge, lay down, make a judgement, ordain, order, pronounce, resolve, and settle.