| a strait between Singapore Island and the Riau Archipelago at the S end of the Malay Peninsula: shipping channel between the South China Sea and the Malacca Strait. 65 mi. (105 km) long and 10 mi. (16 km) wide. |
| Singapore Strait A strait off the southern end of the Malay Peninsula between Singapore Island and the Riau Archipelago. It connects the Strait of Malacca with the South China Sea. |
Singapore Strait
channel extending for 65 miles (105 km) between the Strait of Malacca (west) and the South China Sea (east). The strait is 10 miles (16 km) wide and lies between Singapore Island (north) and the Riau Islands (south), part of Indonesia. It includes Johore Strait (q.v.), Keppel Harbour, and many small islands. As the deepwater approach to the port of Singapore, the strait is one of the world's busiest commercial routes.
Learn more about Singapore Strait with a free trial on Britannica.com.