‘谐振’ (xié zhèn) literally combines ‘谐’ (harmony, concord) and ‘振’ (vibration, oscillation), meaning a state where two or more oscillating systems reinforce each other through matching frequencies. In physics, it refers specifically to resonance — such as when a tuning fork causes a nearby identical fork to vibrate without direct contact. This phenomenon is critical in acoustics, electronics (e.g., radio receivers), and mechanical engineering.

Beyond physics, ‘谐振’ is also used metaphorically in Chinese to describe powerful synergistic effects — for instance, when ideas, efforts, or cultural elements align to produce unexpectedly strong collective impact. Though the core idea remains ‘mutual reinforcement through alignment’, its figurative use is common in academic, business, and policy discourse, especially when emphasizing harmony-driven outcomes rather than mere coincidence or aggregation.