fortify /ˈfɔ:tifai/ vt. & vi. 1. 设防；使坚强：The whole town was heavily fortified.全城严密设防。This country will fortify the coastal areas.该国将加强沿海地区的防御。2. 强化，增强：fortify one’s confidence坚定自已的信心；powdered milk fortified with vitamins加有维生素的奶粉