ad. In a useful manner; in a way that achieves something
the GNU version of the Collaborative International Dictionary of English
ad. In a useful manner.
The Century Dictionary and Cyclopedia
In a useful manner; profitably; beneficially; in such a manner as to effect or advance some end.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
ad. in a useful manner
Word Usage
"Those who enjoy the show inhabit that world, and presumably wish to continue living there, and thus the mockery of its manifestations and assumptions remain usefully "corrective," reminding them that it can all be quite ridiculous."