Taxonomy of meanings for 叩:  

  • 叩 kòu (OC: khooʔ MC: kʰəu) 苦后切 上 廣韻:【叩頭 】
    • KNOCK
      • vtoNknock at; strike against so as to make a sound
      • vtoNfigurativestrike (a note)
      • vtoNobject=headknock (head etc) against the ground (see 叩頭)
    • STRIKE
      • ASK
        • TOUCH
          • RELY ON
            • EARNEST
              • BOW DOWN
                • = 扣

                Additional information about 叩

                說文解字:

                  Criteria
                • KNOCK

                  1. A general word for knocking against something, typically so as to produce a sound, is kòu 叩.

                  2. Zhuàng 撞 is to knock hard against something (e.g. a bell), and it is hard to see how this is different in meaning from jī 擊 "knock"

                  3. Bó 搏 is to tap against (e.g. one's thighs).

                  4. Pāi 拍 (HF: 一手獨拍 "one hand clapping alone") refers specifically to the beating or clapping of a surface, often for the purpose of making a sound.