Definition and meaning of English word "day"
day
/deɪ/
Meaning
NounThe time when the Sun is above the horizon and it lights the sky.
How to use
The word 'day' is commonly used in various contexts, including weather forecasts, schedules, and daily routines. It's essential to note that 'day' can be used as a unit of time, but it can also refer to the period of daylight. For example, 'I'll meet you at 5 o'clock in the day' is a common expression, but it's more accurate to say 'I'll meet you at 5 o'clock in the afternoon.'
🇬🇧 English
day
Example
We spent the entire day hiking along the mountain trail.
The day is sunny
Your personal vocabulary
🦊 Use this word in a live AI conversationSynonyms
Common phrases
- daybreak— the time of day when the sun rises
- daylight saving— the practice of setting clocks forward by one hour during the summer months
- day in and day out— every day, without exception
- day of the week— a specific day of the week, such as Monday or Sunday
- day and night— continuously, without interruption
More Time & Calendar words
This concept in other languages
Frequency rank: #37 in English
Learn them all! 🚀
Master the 1000 most common English words with smart explanations, audio pronunciation, and spaced repetition.
Start Learning For Free →No sign-up required
Frequently Asked Questions
What does the English word "day" mean?▼
The English word "day" means "day" in English.
How do you pronounce the English word "day"?▼
You can hear the correct audio pronunciation of the word "day" by clicking the play button next to the word at the top of this page.
Can I see an example sentence with "day"?▼
Yes, here is a practical example: "We spent the entire day hiking along the mountain trail." (which translates as "day").
Related reading
Duolingo vs Anki vs Apps: Comparing Language Learning Methods in 2026
An honest comparison of popular language learning approaches: gamified apps, SRS flashcards, textbooks, tutors, and immersion. Pros, cons, and who each is best for.
Read →MethodWhat Is Spaced Repetition? The SM-2 Algorithm Explained Simply
Spaced repetition is the single most effective method for memorizing vocabulary. Learn how the forgetting curve works, how the SM-2 algorithm calculates review intervals, and why 20 minutes a day beats 2 hours of cramming.
Read →