day
0 antonyms and opposites of day, grouped by meaning.
Noun — The 24-hour period during which the Earth completes one rotation, from one midnight to the next.
How to use day
The word patterns that sound natural to a native speaker.
Etymology
From Old English dæg, an ancient Germanic word ultimately traced back to a Proto-Indo-European root meaning "to burn" — likely a reference to the heat and light of the sun.
Full origin of day →Frequently asked questions
What does “day” mean?
The word “day” means the 24-hour period during which the Earth completes one rotation, from one midnight to the next. In plain terms, one rotation of the Earth (24 hours), the light part of that period, or — loosely — an era or time in history.
How do you pronounce “day”?
“Day” is pronounced DAY (/ˈdeɪ̯/ in IPA).
How do you use “day” in a sentence?
Here is “day” used in a sentence: “We spent three days hiking through the mountains.”
What is another word for “day”?
Words with a similar meaning to “day” include yearday.
What part of speech is “day”?
“Day” is a noun.
Where does the word “day” come from?
The word “day” comes from Old English. From Old English dæg, an ancient Germanic word ultimately traced back to a Proto-Indo-European root meaning "to burn" — likely a reference to the heat and light of the sun.
Is “day” a common word?
“Day” is a very common word in modern English, usually learned at around the A1 level.
How many meanings does “day” have?
“Day” has 4 distinct senses listed in this dictionary. The most common is: the 24-hour period during which the Earth completes one rotation, from one midnight to the next.
What is the difference between a day and daytime?
A day in this sense is the full 24-hour period from one midnight to the next, covering both light and dark. Daytime is only the lit part, from sunrise to sunset. So a winter day is still 24 hours long even when its daytime — the hours of daylight — is short.
Why is a day 24 hours long?
A day is the time the Earth takes to spin once on its axis, and that rotation lasts roughly 24 hours. As the planet turns, each place moves from midnight through morning, noon, and evening back to midnight — one full turn, one full day. We divide that span into 24 equal hours.
What are the different types of day?
The everyday calendar day runs midnight to midnight. Astronomers also use the solar day (noon to noon, the basis of our 24 hours) and the sidereal day (one rotation measured against the stars, about four minutes shorter). 'Day' can also mean just the daylight hours, depending on context.