1) Irrawaddy river 2) Principal river of Myanmar 3) River 4) River through Myanmar 
[n] - the main river of Myanmar rising in the north and flowing south through the length of Burma to empty into the Andaman Sea
Chief river of Myanmar (Burma), flowing roughly north–south for 2,090 km/1,300 mi across the centre of the country into the Bay of Bengal. Its sources are the Mali and N'mai rivers; its chief tributaries are the Chindwin and Shweli
a river flowing S through Burma (Myanmar) to the Bay of Bengal. 1250 mi. (2015 km) long.