定约

定约	dìng yuē	to conclude a treaty / to make an agreement / contract (at bridge)
定	dìng	to fix; to set; to make definite / to subscribe to (a newspaper etc); to book (tickets etc); to order (goods etc) / to congeal; to coagulate / (literary) definitely
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