migrating, especially of people; migratory. noun. 2. a person or animal that migrates. 3. a person who attempts to permanently relocate to a new country, but who may be subject to removal by the government of that country: undocumented migrants; unaccompanied child migrants. Compare immigrant.
Definition: Columns are a fundamental part of any spreadsheet program such as Excel and Google Spreadsheets. Columns run vertically in a worksheet. Each column is identified by a letter in the column header starting with Column A and running through to Column XFD.
It means that the row or column which comes after the dollar sign is anchored or absolute. When you copy Excel formulas, they will copy cells referred in that formula relative to the position where they are being copied to. Let's take a simple example. In Cell A1, I have the value 10. In Cell B1, I have the formula +A1.