When referring to text, indent or indentation is the increase or decrease of space between the left and right margin of a paragraph. To indent text, move the cursor to the front of the line and press the Tab on the keyboard.
Example of indented text.
How big is an indent?
A typical indent is five spaces from the left or right side of the page.
Text programs that support a tab also support multiple indents. For example, you could press Tab three times to indent a line fifteen spaces from the left side.