沙滩 (shātān) literally combines 沙 (shā), meaning 'sand', and 滩 (tān), meaning 'shore' or 'bank', to form a compound noun meaning 'beach'—specifically a sandy shore, usually by the sea or a large lake. Unlike generic terms for 'coast' or 'shore', 沙滩 emphasizes the soft, granular texture of the ground, making it ideal for sunbathing, building sandcastles, or walking barefoot.

This word is commonly used in everyday speech, travel descriptions, weather reports, and children’s stories. It appears frequently in phrases like 沙滩排球 (shātān páiqiú, beach volleyball), 沙滩椅 (shātān yǐ, beach chair), or 沙滩度假 (shātān dùjià, beach vacation). While it can occasionally refer to riverbanks with sand, its dominant association is with seaside leisure environments—not rocky coasts or artificial pools.