day

/deɪ/

Reviewed on

Type

Noun

Meaning

  1. A continuous period of twenty-four hours, measured from midnight to midnight.

    • The package should arrive within one business day.

  2. The interval of light between sunrise and sunset.

    • Owls hunt at night and sleep during the day.

  3. The portion of twenty-four hours spent working or at school.

    • She had an exhausting day at the office.

  4. A particular era, historical period, or phase of life.

    • In my grandparents' day, people rarely traveled overseas.

Collocations

  • business day
  • every single day
  • workday
  • in this day and age

Synonyms

  • daytime
  • daylight
  • era
  • time

Antonyms

  • night

Idioms

  • call it a day

    to stop working on something for the rest of the day

    We have accomplished plenty, so let us call it a day.

  • day in, day out

    continuously and repeatedly over a long period

    He practiced the violin day in, day out until he mastered the piece.

  • make someone's day

    to make someone feel very happy

    Receiving your thoughtful letter truly made my day.