tình nguyện

== Vietnamese == === Etymology === Sino-Vietnamese word from 情願. === Pronunciation === (Hà Nội) IPA(key): [tïŋ˨˩ ŋwiən˧˨ʔ] (Huế) IPA(key): [tɨn˦˩ ŋwiəŋ˨˩ʔ] (Saigon) IPA(key): [tɨn˨˩ ŋwiəŋ˨˩˨] === Verb === tình nguyện • (情願) to volunteer ==== Synonyms ==== (to volunteer): thiện nguyện ==== Derived terms ====