The process of merging a " boilerplate " document (such as a form letter, label, or envelope) with a list of data (usually names and addresses) to generate personalized documents.
main document
The actual document that you are producing, such as a form letter, label, or envelope.
merge field
Fields that you insert in a main document telling Word where to insert the individual pieces of data ( name , address, and so on) from the data source.
memory
The temporary storage area in your computer that holds the programs and documents that you currently have open (also called RAM, for random access memory ). Memory is cleared each time you turn off your computer. If you want to return to a document later, you need to save it to disk.