Vientiane in British English
(ˌvjɛntɪˈɑːn) or Viangchan (ˌwiːɛŋˌtæn)
nounthe administrative capital of Laos, in the south near the border with Thailand: capital of the kingdom of Vientiane from 1707 until taken by the Thais in 1827. Pop: 996 566 (2015 est)