The word "轻轻" is formed through the complete reduplication of the single character "轻" (qīng), which means light in weight or gentle in action. This process of simply repeating the character creates a new, nuanced form that intensifies the original meaning, shifting it from a general state of "lightness" to a specific manner of action meaning "very gently", "softly", or "with a light touch". The repetition itself inherently conveys a sense of continuity, carefulness, and attenuation of the action.