Absolute cell referencing in a spreadsheet (like Excel or Google Sheets) always refers to the same cell, regardless of where the formula is copied or moved. It is denoted by a dollar sign ($), such as $A$1, where both the column and row are fixed.

For example:

• In a formula like =$A$1 + 5, if you copy that formula to another cell, it will always reference cell A1, no matter where the formula is placed.