A temporary or supplementary fortification, typically square or polygonal and without flanking defenses.
- ‘A camp was built on top of the cliff and a redoubt followed.’
- ‘Unlike the fortified cities of northern Ireland, Charles Towne's streets fail to connect the bastions and redoubts rimming the town.’
- ‘The earthworks were reused as a gun redoubt during the Civil War.’
- ‘A few men actually made it to the redoubt on top, only to be killed immediately.’
- ‘The buccaneer fought the King's soldiers for many a year until a large force of redcoats stormed his redoubt.’
Early 17th century: from French redoute, from obsolete Italian ridotta and medieval Latin reductus refuge from Latin reducere withdraw The -b- was added by association with doubt.