Phnom Penh is the capital and most populous city of Cambodia. It has been the national capital since the French protectorate of Cambodia and has grown to become the nation's primate city and its economic, industrial, and cultural centre. Before Phnom Penh became capital city, Oudong was the capital of the country.

Khmer is an Austroasiatic language spoken by the Khmer people, and the official and national language of Cambodia. Khmer has been influenced considerably by Sanskrit and Pali, especially in the royal and religious registers, through Hinduism and Buddhism. It is also the earliest recorded and earliest written language of the Mon–Khmer family, predating Mon and Vietnamese, due to Old Khmer being the language of the historical empires of Chenla, Angkor and, presumably, their earlier predecessor state, Funan.