ɪn fˌɔːɹɾɪfɪkˈeɪʃən, kˈæsɚnz ɑːɹ lˈɪɾəl ɹˈuːmz, lˈɑːdʒmənts, ɔːɹ ɐpˈɑːɹtmənts, ɪɹˈɛktᵻd bᵻtwˌiːn ðə ɹˈæmpɑːɹts, ænd ðə hˈaʊzᵻz ʌv fˈɔːɹɾᵻfˌaɪd tˈaʊnz, ɔːɹ ˈiːvən ɔnðə ɹˈæmpɑːɹts ðɛmsˈɛlvz; tə sˈɜːv æz lˈɑːdʒɪŋz fɚðə sˈoʊldʒɚz ʌvðə ɡˈæɹɪsən, tʊ ˈiːz ðə ɡˈæɹɪsən, ɪn pˈoːɹtʃəɡəl ænd bɹɐzˈɪl "kwˈɔːɹɾəl" dᵻɹˈaɪvd fɔːɹ fˈoːɹ fˈeɪsᵻz.
In fortification, caserns are little rooms, lodgments, or apartments, erected between the ramparts, and the houses of fortified towns, or even on the ramparts themselves; to serve as lodgings for the soldiers of the garrison, to ease the garrison, in Portugal and Brazil "Quartel" (derived for 4 faces).