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 Kinyarwanda Language
According to Wikipedia.org, Kinyarwanda is the official language of Rwanda. It is a popular dialect of the Rwanda-Rundi language that is spoken by native speakers. This language is also spoken in the Republic of the Congo and many other parts of Southern Uganda. You will be surprised to know that its writing system is Latin. There are around seven dialects of Kinyarwanda that include Bufumbwa; Bwisha; Hutu; Igikiga; Mulenge; Rufumbir and Rutwa. The native speakers of this language are 9.8 million. Kinyarwanda is from the Bantu and Niger-Congo language family. This language is closely related to Kirundi while the spelling system is Roman Catholic. The basic vowels and consonants are few while the sound of this language is very unique. You can easily distinguish by the tone that is high and low.