bút nghiên

== Vietnamese == === Etymology === Non-Sino-Vietnamese reading of Chinese 筆硯 (“brush and inkstone”, SV: bút nghiễn). === Pronunciation === (Hà Nội) IPA(key): [ʔɓut̚˧˦ ŋiən˧˧] (Huế) IPA(key): [ʔɓʊk̚˦˧˥ ŋiəŋ˧˧] (Saigon) IPA(key): [ʔɓʊk͡p̚˦˥ ŋiəŋ˧˧] === Noun === bút nghiên (literally) brushes and inkstone mượn lấy bút nghiên tỏ ít lời ― let me borrow the brush and inkstone to explain a few words (figurative) studies; literary endeavours theo đòi bút nghiên ― to ready oneself for one's studies