Lao

(noun) a member of a Buddhist people inhabiting the area of the Mekong River in Laos and Thailand and speaking the Lao language; related to the Thais. Synonyms: Laotian.

(noun) the Tai language of a Buddhist people living in the area of the Mekong River in Thailand and Laos.

(adj) of or relating to a member of the Buddhist people inhabiting the Mekong river in Laos and Thailand.