2. a. To alter (an image, especially a photograph) by means of an airbrush or other technique in order to increase its attractiveness or conceal an unwanted part.
b. To alter or obscure (an unwanted part) in an image, especially by using an airbrush.
c. To alter (a report, for example) in order to conceal or obscure unpleasant details.
d. To obscure or delete (unpleasant details) in a report or other document.