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When learning English, you’ve probably come across the phrase “call it a day” in movies or everyday conversations. However, what does call it a day actually mean, and are you sure you’re using it in the right context? Many IELTS learners accidentally use this idiom in inappropriate situations, which can make their speech sound unnatural or unsuitable for academic settings.

This article will help you fully understand the meaning and correct usage of call it a day, and show you how to use it effectively in daily communication as well as in the IELTS exam.

1. What does call it a day mean?

Call it a day means to stop working on a task or end an activity at the present time. This idiom is often used when someone decides to stop and continue the task another day, or simply wants to end an activity in order to rest.

In Vietnamese, it is commonly understood as kết thúc công việc trong ngày, tạm dừng lại để nghỉ ngơi, or làm đến đây thôi.

Examples:

  • We’ve finished the main tasks, so let’s call it a day.

  • I’ve answered enough emails for one lifetime today. I’m calling it a day.

  • After three hours of practice tests, my brain was completely exhausted, so I decided to call it a day.

2. The origin of the idiom call it a day

The idiom call it a day is believed to have originated in the late 19th century, in the context of daily-wage labour in the UK and the US. At that time, day referred to a working day, and call meant to officially declare or decide something. As a result, call it a day originally referred to the decision to end the working day and stop counting paid hours—often made by a manager or employer when work was completed or could not continue.

Over time, the meaning expanded beyond traditional labour contexts. The idiom came to describe ending any activity when someone feels they have done enough, are no longer productive, or need rest. Importantly, call it a day has a neutral to positive tone, expressing a conscious and reasonable decision to stop, rather than giving up in a negative sense.

Today, call it a day is widely used in everyday conversation and modern workplaces, especially when emphasizing balance between productivity and rest.

3. Common contexts for using call it a day

To use call it a day naturally and accurately, it’s important to understand the situations in which it is typically used. In practice, this idiom is not limited to work contexts—it is also common in study and daily life.

Context

Example

When a task has been completed

We’ve finished everything on the list, so let’s call it a day.

When feeling tired or unproductive

I’ve been studying for hours and can’t focus anymore. I’ll call it a day.

When stopping now and continuing tomorrow

This problem is getting complicated. Let’s call it a day and continue tomorrow.

4. Call it a day vs. stop

Although both expressions involve ending an activity, call it a day and stop differ in nuance and usage.

Criteria

Call it a day

Stop

Word type

Idiom

Verb

Object required

No object

May take an object

Meaning

Stop working on a task for now (usually for the day)

Cease any action

Typical usage

Ending work/study to rest or resume later

Physical actions, habits, commands

Tone

Mild, neutral to positive

Neutral or directive

Example

We’ve worked hard all morning. Let’s call it a day.

Please stop using your phone during the meeting.

5. Synonyms and antonyms of call it a day

Understanding related expressions helps you vary your language and choose the most appropriate phrase for each context.

5.1. Idioms and synonyms

Expression

Meaning

Example

Down tools

Stop working (often manual labour)

The workers downed tools at the end of the shift.

Finish up

Complete final tasks

I’ll finish up this task and then head home.

Knock off (work)

Finish work for the day

I usually knock off work at 6 p.m.

Pack it in

Stop because of fatigue or inefficiency

We’re exhausted, so let’s pack it in.

Wrap things up

Finish neatly

We’ve covered all the points, so let’s wrap things up.

Stop for the day

End work for today (neutral)

We decided to stop for the day and continue tomorrow.

Take a break

Pause temporarily

Let’s take a break and come back later.

5.2. Idioms and antonyms

Expression

Meaning

Example

Burn the midnight oil

Work or study late

She’s been burning the midnight oil for IELTS.

Carry on

Continue

They carried on working despite the noise.

Go the extra mile

Make extra effort

He always goes the extra mile.

Keep going

Continue without stopping

She decided to keep going despite being tired.

Push on / press on

Continue despite difficulty

We pushed on to meet the deadline.

Work through

Work continuously

He worked through the night.

6. Practice exercises (with answers)

Exercise 1: Choose the best option

  1. We’ve revised enough for today. Let’s ______ and get some rest. A. keep going B. call it a day C. burn the midnight oil

  2. The deadline is tomorrow, so we have no choice but to ______. A. call it a day B. push on C. take the day off

(Answers: 1.B, 2.B, 3.B, 4.C, 5.A, 6.B, 7.B, 8.B)

Exercise 2: Fill in call it a day (use correct tense)

  1. We’ve been working for five hours. Let’s __________.

  2. After finishing the practice test, she __________.

(Answers: call it a day / called it a day)

Using call it a day correctly to sound more natural

Although call it a day is a common idiom, it cannot be used in every situation. Understanding its meaning and appropriate contexts will help you avoid common mistakes and sound more natural in English. With the explanations, examples, and exercises above, you can confidently apply this idiom in daily communication and in IELTS Speaking.

To further improve your English and prepare effectively for IELTS, remember to practise regularly and explore more useful idioms through IDP’s free preparation resources.

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  • Flexible IELTS test dates available throughout the week

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About this Article

Published on 24 December, 2025

About this Author

One Skill Retake - IELTS Australia
Quynh Khanh

Tôi là Quỳnh Khanh - Content Writer có hơn 5 năm kinh nghiệm về lĩnh vực giáo dục