叩	584B55   40A.22-5	部居	畫數  5	ㄎㄡˋ [kou4] .
V	(1)  To knock: 叩門 knock at door; 叩閽 formerly, to knock at palace gate and lodge complaint; see also 扣 10A.40. (2)  To ask: 叩其姓名 ask his name; 叩安 (＝問安) send greetings. (3)  To kotow, knock head on floor as ceremony (often fig., not lit.): 叩頭 [kou4tou2]↓; 叩首 kotow; 叩拜，叩 (in letters to superiors) I bow in salute; 叩謁，叩見 pay respects, pay visit; 叩求 to request humbly; 叩辭 to decline politely; 叩謝 to thank or decline politely.
Words	1.叩頭 [kou4tou2], v.i., to kotow, ceremoniously knock head on floor; (fig.) to request, to thank: 我給你叩頭 I thank you; 叩頭蟲 an insect, Melanotus legatus.  2.叩問 [kou4wen4], v.i., to ask, to question politely.