day Definition

  • 1a period of twenty-four hours as a unit of time, reckoned from one midnight to the next, corresponding to a rotation of the earth on its axis
  • 2the time during which the sun is visible; daylight
  • 3a particular period of the day; a specified time

Using day: Examples

Take a moment to familiarize yourself with how "day" can be used in various situations through the following examples!

  • Example

    I work eight hours a day.

  • Example

    The wedding is in three days.

  • Example

    I usually wake up at six in the morning every day.

  • Example

    I prefer to exercise in the afternoon.

day Synonyms and Antonyms

Idioms Using day

  • make someone's day

    to make someone very happy


    Her compliment really made my day.

  • to stop doing something for the rest of the day, usually work


    We've been working for hours, let's call it a day.

  • to have a great time, especially when doing something that you enjoy


    The kids had a field day playing in the park.

Phrases with day

  • during the entire day; for the duration of the daylight hours


    I was at work all day yesterday.

  • repeatedly or continuously over a period of time


    Day after day, he would go to the park to feed the ducks.

  • day in, day out

    happening every day over a long period of time, especially something boring or unpleasant


    She worked day in, day out to support her family.

Origins of day

from Old English 'dæg', meaning 'the time of light between one night and the next'


Summary: day in Brief

The term 'day' [deɪ] refers to a period of twenty-four hours, from one midnight to the next, or the time during which the sun is visible. It can also refer to a particular period of the day. Examples include 'I work eight hours a day' and 'The wedding is in three days.' Phrases like 'all day' and idioms like 'make someone's day' are also common.

How do native speakers use this expression?