The term CITY WEST OF HONG KONG is Macao, which is a 5-letter word. Macao is a special administrative region of the People's Republic of China located on the western side of the Pearl River Delta in East Asia. It is bordered by Guangdong province to the north and the South China Sea to the east and south. Macao has been a Portuguese colony since the 16th century and was the first and last European colony in China. It is known for its casinos, nightlife, and colonial architecture.