<p><strong>Noun</strong></p><ul><li>the fundamental facilities and systems serving a country, city, or area, as transportation and communication systems, power plants, and schools: Investments in infrastructure helped the U.S. economy recover from the Great Depression.</li><li>the basic, underlying framework or features of a system or organization: Over the years, as the incidence of cancer increased, the infrastructure of the hospital was developed to accommodate the new cases.</li><li>Synonyms: support, foundation, basis</li><li>the military installations of a country: We could do much with just a fraction of the billions spent to maintain our robust overseas infrastructure.</li></ul>