👉 A fluid, in various contexts, generally refers to a substance that can easily change its shape or form to fit its surroundings, often exhibiting properties like viscosity, elasticity, or malleability. In physics and chemistry, a fluid is a state of matter that flows freely and can take the shape of its container, distinguishing it from solids and gases. In fluid dynamics, a fluid's behavior under different forces and conditions is studied extensively. In everyday language, the term can also describe a flexible or adaptable mindset, where one is open to change and able to adjust to new situations or circumstances.