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

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
Farlex Dictionary of Idioms.
See also:
  • avenge (oneself) against (someone or something)
  • compete
  • compete against
  • compete against (someone or something)
  • institute
  • institute (something) against (someone or something)
  • institute against
  • demonstrate against
  • demonstrate against (someone or something)
  • indemnify (someone or something) against (something)