Adding on refers to the act of including something extra to an existing item or task. There are several synonyms for this term, including supplementing, appending, increasing, expanding, augmenting, and attaching. When we supplement or append, we are adding something to provide additional support or information. Increasing or expanding indicate adding something to enhance or make something bigger. Augmenting implies adding something to improve the worth, quality, or performance of the task. Finally, attaching refers to adding something specific to something else to support or enhance it. No matter which term you use, the act of adding on helps us to build, strengthen, and enrich our lives.