How to Sign "Vacuum"
To sign *vacuum*, start by forming your dominant hand into a 'C' handshape, as if you are firmly grasping the handle of an upright vacuum cleaner. Position your hand in front of your body at about chest or waist level, with your palm facing forward or slightly down. Finally, move your hand forward and backward a few times in a steady pushing and pulling motion. This repetitive movement clearly mimics the everyday action of vacuuming a floor.