rampart
/ˈræmpɑːt ˈरैम्पाट्/ noun [C, usually pl.] a high thick wall made of stone or earth, usually with a path on top, that has been built around a castle, town, etc. in order to protect it (महल, क़िला, शहर आदि की सुरक्षा के लिए) पत्थर या मिट्टी की बनी दिवार (चारों ओर); परकोटा; प्राचीर