The Vietnamese word "nóng chảy" translates to "melt" in English. It refers to the process of heating something until it becomes liquid. This term is commonly used when talking about substances like ice, chocolate, or butter when they are heated.
In more advanced contexts, "nóng chảy" can also apply to metals and other materials in physics or engineering. For example: - "Kim loại sẽ nóng chảy ở nhiệt độ cao."
(The metal will melt at high temperatures.)