fortify (someone or something) against (something)

fortify (someone or something) against (something)

To strengthen or support someone or something, in order to improve chances of success against someone or something else. We need to fortify our bunker against enemy troops. I take vitamins to fortify my immune system against germs.
See also: fortify
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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