缔约

缔约	dì yuē	to conclude a treaty
缔	dì	(archaic) to bind up inextricably / (bound form) to form an enduring union; to establish (an alliance, a friendship, a nation etc)
约	yāo	to weigh in a balance or on a scale
约	yuē	to make an appointment / to invite / approximately / pact / treaty / to economize / to restrict / to reduce (a fraction) / concise