I'm sorry, but there seems to be a misunderstanding. The four parameters of signed words are handshape, movement, location, and orientation. These parameters refer to the specific hand shape used, the movement of the hands and body during signing, the location of the signs in relation to the body or signing space, and the orientation or direction the palm is facing. Sound is not a parameter in signed words since sign language primarily uses visual-spatial communication rather than auditory communication.
