There are many different synonyms for the word "expandability," such as scalability, extensibility, flexibility, pliability, elasticity, and adaptability. All of these words describe the ability of something to be expanded or stretched, either in physical size or in scope. For example, a computer system that has good expandability can be easily upgraded with more memory or storage, while a language that has high extensibility allows programmers to add their own custom features and functions. Flexibility refers to the ability of something to bend or change shape, while pliability describes something that can be easily molded or shaped. Elasticity describes something that can stretch and then return to its original shape, while adaptability refers to the ability of something to adjust to changing circumstances or conditions.