to hit, strike, or tap; to beat a drum; to rap on a door or surface

(colloquial) to fleece or rip someone off; to extort money; to blackmail, as in 敲竹杠 qiāo​zhú​gàng

(literary) to ponder or weigh words; to deliberate, as used in the compound 推敲 tuī​qiāo

(Mainland China colloquial) to criticize or alert someone in order to keep them level-headed

(literary) a short wooden stick or cane used for striking