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Burn the Midnight Oil

Burn the Midnight Oil.

English
idiom

To work or study late into the night.

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What it means...

To stay up very late working or studying.

When you burn the midnight oil, you sacrifice sleep to get something done.

It often suggests hard work and dedication, though it can also hint at stress or last-minute effort.

Use it when…

  • When a student studies through the night before an exam
  • When an employee stays late to finish a project before a deadline
  • When someone works into the early hours to meet a creative goal

Don’t confuse with...

Wrong icon

"Work Around the Clock"

Work continuously without stopping, day and night

Wrong icon

"Pull an All-nighter"

Stay awake the entire night to work or study

Correct icon

"Burn the Midnight Oil"

Work late into the night to get something done

Where you’ll hear it

You’ll hear the "Burn the Midnight Oil" idiom in real life — at work, in relationships, or in the media.

Work & Business

Emails & Communication

Her manager noticed she had been burning the midnight oil when work emails started arriving at 2 a.m.

Relationships & Social Life

Emotional Situations

His partner was worried about his health when she saw him burning the midnight oil every night that week.

Media & Everyday Life

Social Media

Students across the country post about burning the midnight oil during exam season.

Use it like this

Here’s how to use "Burn the Midnight Oil" idiom naturally in real conversations, with real examples.

Work & Business

Talking to Colleague

You

I’ve been burning the midnight oil trying to finish this report before Friday.

Colleague

Let me know if you need help — this one’s too big for one person.

Relationships

Talking to Partner

Partner

You look exhausted. What time did you go to bed?

You

I was burning the midnight oil — the deadline’s tomorrow and I’m not done yet.

Everyday Conversations

Everyday Problems

You

I burned the midnight oil for three nights straight and still didn’t finish on time.

Friend

That’s rough. You need to start planning earlier.

Last updated:
April 20, 2026

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