Augmentable is a term that means capable of being increased or enlarged. There are many synonyms for this word, including extendable, expandable, scalable, and amplifiable. Each of these words carries the same general meaning, but they may be used in slightly different contexts. For example, extendable may be used to refer to something that can be made longer, while expandable may be used to refer to something that can be made wider. Scalable is often used in a business context to refer to a system or process that can handle growth. Amplifiable may be used to refer to something that can be made louder or more intense.