Pronunciation: /naɪt ənd deɪ/
noun the time between one night and the next
A1 I like to sleep at night and day.
A2 The city is alive with activity night and day.
B1 The factory operates night and day to meet production demands.
B2 The contrast between the two neighborhoods is like night and day.
C1 The artist worked tirelessly night and day to complete the masterpiece.
C2 The company's profits have increased night and day since implementing the new marketing strategy.
conjunction used to emphasize the difference between two things
A1 I work night and day to provide for my family.
A2 The city is alive night and day with people and activity.
B1 The contrast between their personalities is like night and day.
B2 The company's performance improved night and day after the new CEO took over.
C1 The artist's style has evolved night and day since their early works.
C2 The quality of service at this hotel is like night and day compared to others in the area.
formal The security team works tirelessly to monitor the premises night and day.
informal I've been studying for this exam night and day.
slang She's been partying night and day since she turned 21.
figurative The difference in their work ethic is like night and day.
nighted and dayed
nights and days
more night and day
most night and day
night and day
will night and day
have nighted and dayed
nighting and daying
night and day
night and day
to night and day
nighting and daying
nighted and dayed