fortify

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Related to fortifies: fortified wine, pristine

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.
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fortify (someone or something) with (something)

To use something in particular to strengthen or support someone or something. The enemy troops are advancing, so we need to fortify our bunker with more snipers. I fortify my immune system with vitamins.
See also: fortify

fortify (someone or something) against (something) with (something)

To use something in particular to strengthen or support someone or something against someone or something else. We need to fortify our bunker against the advancing enemy troops with more snipers. I fortify my immune system against germs with vitamins.
See also: fortify

fortify (someone or an animal) (against something) (with something)

to strengthen someone or an animal against something with something. I'll need a cup of hot chocolate to fortify me against the storm. We have to fortify the dogs against the cold with extra food.