Compounds of 昼

• 白昼堂堂
  (adj-no,adj-t,adv-to) openly (unashamedly) in broad daylight
• 昼間託児所
  (n) day-care center
  day-care centre
• 昼光色電球
  (n) daylight lamp
• 昼夜を舎かず
  (exp) continuing day and night
• 昼夜を分かたず
  (adv) by day and night
  day and night