IPA: /rɪˈdaʊt/
KK: /rɪˈdaʊt/
A safe place that is built to protect people or things, often used in military contexts.
The soldiers took shelter in the redoubt during the battle.
Redoubt → It is formed from "re-" (meaning back or again) and "doubter" (from Old French *doubte*, meaning to doubt or to fear). The word originally referred to a defensive fortification that provides a place of safety or retreat, hence the idea of going back to a secure position.
Think of 'going back' ('re-') to a 'place of safety' ('doubter') — that's why a redoubt is a defensive position.