The word 嚷嚷 is formed through a process of phonetic reduplication, where the base syllable "rāng" is repeated to create a single, expressive unit. This repetition intensifies the core meaning associated with the sound, conveying a sense of noisy, clamorous, or persistent vocalization, and transforms it from a simple action into a more vivid and often chaotic auditory scene. The formation mimics the very quality it describes, using the duplicated sounds to evoke the sensation of multiple voices or an ongoing, bothersome din.