The word Shibuya (渋谷) literally translates to "Quiet Valley" or "Aged Valley" in English. The name is composed of two kanji characters: "Shibu" (渋), which can mean "bitter," "quiet," "subtle," or even "pucker" (as in the taste of an unripe persimmon), and "ya" (谷), which means "valley." Historically, the area was a river valley inhabited by the Shibuya family, a noble clan that built a castle there during the Edo period. It is quite ironic that the name means "Quiet Valley," as modern Shibuya is world-famous for being one of the loudest, brightest, and most crowded urban centers on Earth. It is home to the Shibuya Crossing, the world's busiest pedestrian intersection, and serves as a global hub for youth fashion and nightlife. When Japanese people use the word "shibui" (derived from the same first character), it refers to an aesthetic of "effortless cool" or "understated elegance," which captures the sophisticated, trend-setting spirit of the district much better than the literal "quiet" translation does today.