ad. Of necessity; necessarily; indispensably; often with must, and equivalent to "of need".
n. Plural form of need.
v. Third-person singular simple present indicative form of need.
the GNU version of the Collaborative International Dictionary of English
ad. Of necessity; necessarily; indispensably; -- often with must, and equivalent to of need.
The Century Dictionary and Cyclopedia
Of necessity; necessarily; unavoidably: generally used with must.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
ad. in such a manner as could not be otherwise
Word Usage
"Discriminating and broad-minded criticism is what the South needs, needs it for the sake of her own white sons and daughters, and for the insurance of robust, healthy mental and moral development."