プログレッシブ和英中辞典(第4版)の解説
やかん【夜間】
night; nighttime
彼らは夜間に働き，昼間は休む
They work by night and rest by day.／They work at night and sleep during the day.
夜間営業
〔掲示〕Open Evenings；〔朝迄〕Open All Night
この店は９時まで夜間営業を行います
This shop stays [is] open till 9 at night.
夜間演習
((go on)) night exercises [maneuvers]
夜間介護
night care
夜間外出禁止令
((impose)) a curfew
夜間勤務
night work [duty] ⇒やきん（夜勤）
夜間試合
a night game
夜間診療
nighttime (emergency) medical service
休日・夜間診療は救急のためのものだ
Weekend and nighttime treatment is for emergencies (only).／〔診療側〕We accept patients on weekends and at night only for emergency treatment.
夜間飛行
((make)) a night flight；((do)) night flying
夜間飛行便
《口》 a red-eye (flight)
夜間部
the night school
夜間部の学生
a night-school student