ɐ fˈaʊɡæs ɪz ɐn ˈɪmpɹəvˌaɪzd mˈɔːɹɾɚ kənstɹˈʌktᵻd baɪ mˌeɪkɪŋ ɐ hˈɑːloʊ ɪnðə ɡɹˈaʊnd ɔːɹ ɹˈɑːk ænd fˈɪlɪŋ ɪt wɪð ɛksplˈoʊsɪvz ɚɹˈɪdʒɪnəli, blˈæk pˈaʊdɚ ænd pɹədʒˈɛktəlz.
A fougasse  is an improvised mortar constructed by making a hollow in the ground or rock and filling it with explosives (originally, black powder) and projectiles.