day-and-night
Definition
Adjective: Occurring or operating continuously, without interruption, throughout both day and night.
Usage
This adjective describes something that happens or functions non-stop, 24 hours a day. It emphasizes constant, unceasing activity or operation.
Examples
- The patient required day-and-night observation from the medical team.
- The factory operates on a day-and-night schedule to meet the high demand.
- She provided day-and-night care for her newborn baby.
Advanced Usage
- "Day-and-night" is often used attributively, meaning it typically comes directly before the noun it modifies (e.g., day-and-night surveillance, day-and-night effort).
- It can be used figuratively to describe intense, relentless mental or emotional focus.
- He worked with day-and-night dedication to finish the project.
Variants and Related Words
- Round-the-clock (adjective/adverb): A direct synonym meaning the same thing (all day and all night).
- 24/7 (adverb, informal): An abbreviation for "24 hours a day, 7 days a week," used to describe continuous operation or availability.
Synonyms
- Continuous
- Nonstop
- Unceasing
- Constant
- Perpetual
Antonyms
- Intermittent
- Occasional
- Periodic
- Sporadic
Related Phrases
- Day and night: This is the adverbial phrase form. It can be used similarly but often follows a verb.
- The security cameras monitor the premises day and night.
- Night and day: An idiomatic phrase with the same meaning as "day and night." It can also be used to emphasize a stark contrast between two things.
- (For continuous action): They worked night and day to meet the deadline.
- (For contrast): His new attitude is night and day compared to his old one.
Adjective
-
at all times
-
around-the-clock nursing care
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