About Thai Language
According to Wikipedia.org, Thai, also known as Central Thai is a Tai language of the Kra–Dai language family. It is spoken by the Central Thai people. A vast majority of Thai Chinese also speak Thai. It is the official language of Thailand. Thai is one of the most spoken languages. There are over 60 languages of Thailand but Thai is one of the most popular languages in Thailand. It is spoken by both native and overall speakers. Half of the Thai vocabulary is similar to Pali, Sanskrit, Mon, and Old Khmer. It is the analytic language and is very much similar to the Chinese and Vietnamese languages. Thai is a dominant language and is spoken by the majority of the society in Thailand. Thai language gained widespread popularity in Thailand and other parts of the world. The language is also adopted as the second language in the late 18th century. Ethnic minorities speak Thai other than their native language or dialect.
About Lao Language
According to Wikipedia.org, Lao is referred to as Laotian. It is a Kra–Dai language and is spoken by the Lao people. It is spoken in Laos and is the official language of 7 million people. It is also spoken in northeast Thailand and is spoken by 23 million people. It is referred to as Isan. The language is lingua franca and is common among the citizens of Laos. It is an analytic language and is similar to the Kra-Dai language. The language is also similar to Chinese and Vietnamese. It is spoken along with Thai and Isan and is spoken by fellow Southwestern Tai languages. Lao is spoken effectively among its native speakers and is used to communicate with one another. These languages are written with different scripts and are linguistically similar to the dialect continuum.