chụm

verb  

• To huddle, to concentrate, to gather
  • chụm chân nhảy
    to gather one's feet for a jump
  • mấy cái đầu cùng chụm vào nhau
    their heads huddled together
  • đạn bắn rất chụm
    the fire was concentrated

• To feed (firewood) to fire
  • chụm thêm một thanh củi
    to feed another piece of firewood
  • chụm lửa
    to light a fire