I means to make a "dent" at the beginning of each paragraph. Usually you would press the tab button on your computer or press space 5 times. You do this at the beginning of every paragraph you write.
The purpose of indenting paragraphs is to indicate a change of subject (as when you move to a new "topic sentence") or at least to break up the text into more readable sections. No one wants to read...
a chemical which is used to make indents: indent 1verb |inĖdent| [ trans. ]1 start (a line of text) or position (a block of text, table, etc.) further from the margin than the main part of the...