Synonyms to tight rein

heavy hand, argumentum baculinum, big stick, despotism, domination, domineering, fascism, firm hand, high hand, iron boot, iron hand, iron heel, oppression, reign of terror, strong hand, terrorism, thought control, tight hand, tight ship, tyranny, administration, authority, claws, clutches, command, control, disposition, dominion, empery, empire, governance, government, grasp, grip, gripe, hand, hands, helm, hold, jurisdiction, mastership, mastery, power, raj, regnancy, reign, reins of government, rule, sovereignty, sway, talons