海运
hǎiyùn · HSK 7
sea transportation
🚢🌊 海 sea + 运 transport = shipping goods over the ocean
海 means sea; 运 means to transport or move (same 运 as in 运输 transport). Together: moving cargo by sea, i.e. ocean shipping.
海 — water radical 氵 + 每 (phonetic)
海 is a phono-semantic compound. The 氵 (water) radical signals the meaning—a vast body of water—while 每 supplies the sound. Originally referring to the sea or ocean, it later extended figuratively to mean 'vast' or 'a great quantity,' as in 人海 (a sea of people).
运 — walk radical 辶 + 军 jūn (army)
Originally depicted an army (军) on the move (辶), meaning to transport or move troops. The sense broadened to 'transport, move, revolve' and later acquired the abstract meaning of 'fortune' or 'luck'—what fate moves toward you. The simplified form replaces traditional 運.