敲定

敲定	qiāo dìng	to come to a decision / to fix on (a date etc) / to determine / to finalize / to nail down (a deal etc)
敲	qiāo	to hit / to strike / to tap / to rap / to knock / to rip sb off / to overcharge
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