day

A1 · Beginner Uncountable noun

n. the time between when the sun rises and when it sets.

n. the period of light between dawn and nightfall; the diurnal portion of the 24-hour cycle.

“The days are much longer in the summer than in the winter.”

“As the winter solstice approached, the days grew noticeably shorter, leaving the villagers with only a few hours of usable light.”

A2 · Elementary Countable noun

n. the part of the day that you spend at your job or at school.

n. the portion of a day dedicated to a specific activity, typically professional labor or education.

“I had a very busy day at the office and I am tired now.”

“After a grueling day on the assembly line, the workers were eager to return home and rest before the next shift began.”

B1 · Intermediate Countable noun

n. a particular time in history or in someone's life.

n. a specific period or era, often characterized by the prominence of a person, movement, or technology.

“In my grandfather's day, people didn't have mobile phones.”

“The historian argued that the glory days of the empire were already fading by the time the new emperor took the throne.”

B2 · Upper Intermediate Countable noun Science Technical

n. the time it takes for a planet to turn around once.

n. the duration of one complete rotation of a celestial body on its axis.

Español:día

“A day on Mars is slightly longer than a day on Earth.”

“Venus is unique in our solar system because its sidereal day is actually longer than its orbital year.”