Imagine you are playing with different colored blocks. Each block represents a different language that people speak in Southeast Asia. However, if you look closely, you will see that some of the blocks share similar features. They have the same shapes, colors, and patterns. These blocks belong to what we call a Linguistic Area – a place where people speak different languages but share some similar words, grammar, and sounds.
Now, Southeast Asia is a big region that includes countries like Thailand, Laos, Cambodia, Vietnam, and Myanmar. Many of these countries have a long history of interacting with each other, sharing ideas and culture. Just like how you and your friends might share toys or games with each other. This has resulted in a "Mainland Southeast Asia Linguistic Area," which means that people living in this region have languages that are very similar to each other.
For example, the languages in this area all have tones. This means that the way you say a word can change its meaning. Imagine saying "ma" (with a high tone) and "ma" (with a low tone). They might sound the same to you, but in some of the languages in mainland Southeast Asia, they mean very different things. Another feature of these languages is that they use similar sounds and word structures. This makes it easier for people from different countries to understand each other even if they speak different languages.
In summary, the Mainland Southeast Asia Linguistic Area is a place where people speak different languages but share some similar features like tones, sounds, and word structures. This makes it easier for people from different countries to communicate with each other.