<p><strong>Noun</strong></p><ul><li>Fortification<ul><li>An isolated work forming a complete enclosure of any form, used to defend a prominent point.</li><li>An independent earthwork built within a permanent fortification to reinforce it.</li><li>Any safe and secure place or situation; refuge; stronghold: Lebanon has represented one of the last redoubts of Christianity in the Middle East.</li></ul></li></ul>