Southeast Asian languages are a diverse group of languages spoken in the region that includes countries like Thailand, Vietnam, and Indonesia. These languages belong to different language families, such as Austronesian, Tai-Kadai, and Mon-Khmer. Each language has its own unique characteristics, making the region rich in linguistic diversity. Many Southeast Asian languages are tonal, meaning that the pitch used when pronouncing a word can change its meaning. For example, in Thai, the word "ma" can mean "dog," "come," or "horse" depending on the tone. This complexity adds to the beauty and challenge of learning these languages.