Thai (ภาษาไทย Phasa Thai [pʰāːsǎː tʰāj] ( listen)), more precisely Central Thai or Siamese, is the national and official language of Thailand and the native language of the Thai people, Thailand's dominant ethnic group. Thai is a member of the Tai group of the Tai–Kadai language family. Some words in Thai are borrowed from Pali, Sanskrit and Old Khmer. It is a tonal and analytic language. Thai also has a complex orthography and relational markers. Thai is mutually intelligible with Lao. Native speakers of these two languages can understand one another without great difficulty.