an toàn khu

== Vietnamese == === Alternative forms === (initialism) ATK === Etymology === Sino-Vietnamese word from 安全 (“safe”) and 區 (“zone”). === Pronunciation === (Hà Nội) IPA(key): [ʔaːn˧˧ twaːn˨˩ xu˧˧] (Huế) IPA(key): [ʔaːŋ˧˧ twaːŋ˦˩ kʰʊw˧˧] (Saigon) IPA(key): [ʔaːŋ˧˧ t⁽ʷ⁾aːŋ˨˩ kʰʊw˧˧] === Noun === an toàn khu (military) a well-protected resistance base area; a safe zone