Appending is a term commonly used in computer programming and data processing, which refers to adding new information or data to an existing dataset or file. There are several synonyms for the word appending, such as adding, attaching, supplementing, joining, and incorporating. These words all have a similar meaning, and are used interchangeably to describe the act of adding new information to an existing set of data. Whether you are appending a new column to a spreadsheet, attaching an email attachment to a message, or joining two separate datasets together, the process is the same - adding new information to an existing dataset. Understanding these synonyms is important when working with data, as they help to ensure clear communication and efficient data processing.