What is the meaning of fortified?

verb

• Make strong or stronger.
  • usage: "This exercise will strengthen your upper body"; "strengthen the relations between the two countries"
  • synonyms: strengthen, beef up, fortify
• Enclose by or as if by a fortification.
  • synonyms: fortify, fort
• Prepare oneself for a military confrontation.
  • usage: "The U. S. Is girding for a conflict in the Middle East"; "troops are building up on the Iraqi border"
  • synonyms: arm, build up, fortify, gird
• Add nutrients to.
  • usage: "fortified milk"
  • synonyms: fortify
• Add alcohol to (beverages. )
  • usage: "the punch is spiked"
  • synonyms: spike, lace, fortify

adjective

• Secured with bastions or fortifications.
  • synonyms: bastioned
• Having something added to increase the strength.
  • usage: "fortified wine"