A "liquide" is a state of matter characterized by its ability to flow and take the shape of its container. Unlike solids, which have a fixed shape, liquids maintain a constant volume but can change shape easily. Common examples of liquids include water, oil, and juice. Liquids are made up of molecules that are close together but can move past one another, allowing them to flow. This property is essential for various processes in nature and industry, such as in the movement of water in rivers or the use of oil in machinery.