夜間(やかん) やかん noun nighttime, at night 1. nighttime, at night, during the night Refers to the period of time between evening and morning when it is dark. 夜間(やかん)の運転(うんてん)は危険(きけん)だ。 Driving at night is dangerous. この道路(どうろ)は夜間(やかん)通行止(つうこうど)めになる。 This road is closed at night. 夜間(やかん)学校(がっこう)に通(かよ)っている。 I attend night school. 夜間(やかん)勤務(きんむ)は体(からだ)に負担(ふたん)がかかる。 Working the night shift is hard on the body. 工事(こうじ)は夜間(やかん)に行(おこな)われるので、昼間(ひるま)は通(とお)れます。 Construction takes place at night, so you can pass through during the day. 夜間(やかん) is a somewhat formal term for nighttime, used especially in compound expressions, signs, and official contexts. More formal than 夜(よる) (everyday word for night).COMMON COLLOCATIONS:夜間(やかん)営業(えいぎょう): operating at night夜間(やかん)勤務(きんむ): night shift夜間(やかん)学校(がっこう): night school夜間(やかん)飛行(ひこう): night flight夜間(やかん)診療(しんりょう): nighttime medical careCONTRAST:夜(よる): night (general, everyday)夜間(やかん): nighttime (formal/official)深夜(しんや): late night, after midnight夜中(よなか): middle of the night昼間(ひるま): daytime (opposite) Related Words Antonym: 昼間(ひるま) (daytime) Antonym: 日中(にっちゅう) (daytime) core Added 2026.1.13 23:00 · Revised 2026.5.30 3:08 04000/04133_yakan