on top of the world
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idiom

on top of the world

Meaning
to feel extremely happy and successful
Example
After winning the award, he felt **on top of the world**.
idiom

once in a while

Meaning
sometimes, but not very often
Example
I enjoy eating out **once in a while**, but I prefer home-cooked meals.
idiom

Out of focus

Meaning
Not clear or not paying attention
Example
He looked tired and completely **out of focus** during the meeting.
idiom

on the right side of the law

Meaning
acting legally; not breaking any laws
Example
He wants to stay **on the right side of the law**.
idiom

on thin ice

Meaning
in a risky or dangerous situation
Example
You are **on thin ice** with that behavior.
idiom

on the same wavelength

Meaning
to think in a similar way as someone else
Example
My best friend and I are always **on the same wavelength**.
idiom

open a Pandora’s box

Meaning
to start something that causes many unexpected problems
Example
Unregulated AI development may **open a Pandora’s box** of ethical issues.
idiom

open and shut case

Meaning
a case that is easily decided or obvious
Example
It was an **open and shut case** with clear evidence.
idiom

out of the box

Meaning
creative and different from usual ideas
Example
Her **out of the box** marketing strategy increased sales rapidly.
idiom

out of your mind

Meaning
crazy or extremely worried
Example
You must be **out of your mind** to drive that fast!
idiom

on the radar

Meaning
something that is being monitored or considered
Example
The new scientific theory is now **on the radar** of researchers across the world.
idiom

out of the frying pan into the fire

Meaning
to go from a bad situation to a worse one
Example
Leaving that job was like jumping **out of the frying pan into the fire**.
idiom

off to a flying start

Meaning
to begin something, like a journey, very successfully
Example
Our trip was **off to a flying start** with perfect weather.
idiom

on air

Meaning
broadcasting live; being aired on television or radio
Example
The radio show will be **on air** from 7 to 9 PM.
idiom

on all fours

Meaning
crawling on hands and knees
Example
The baby moved **on all fours** across the floor.
idiom

on the world stage

Meaning
in the international arena or community
Example
The country's economy is now strong **on the world stage**.
idiom

open Pandora’s box

Meaning
to start something that causes many unforeseen problems
Example
Creating sentient AI could **open Pandora’s box** of ethical challenges.
idiom

on your shoulders

Meaning
used when someone has responsibility for something
Example
The success of this plan rests **on your shoulders**.
idiom

Out of sight, out of mind

Meaning
People or things forgotten when not visible or present.
Example
After moving away, our friendship faded—**out of sight, out of mind**.
idiom

Open book

Meaning
Someone who is easy to understand or transparent.
Example
She’s an **open book**; you always know what she’s thinking.
idiom

off script

Meaning
to deviate from a prepared plan or speech
Example
During the meeting, he went **off script** and made some bold statements.
idiom

on the stump

Meaning
to campaign for political office, especially by giving speeches in public
Example
The candidate has been **on the stump** for weeks, rallying support across the country.
idiom

on the fence

Meaning
undecided or unsure about something
Example
She’s still **on the fence** about moving abroad.
idiom

outside the box

Meaning
thinking or acting in an unusual or unconventional way
Example
To solve this problem, we need to think **outside the box**.
idiom

on the witness stand

Meaning
to be giving testimony in court
Example
The victim was nervous while **on the witness stand**.
idiom

off the hook

Meaning
to be free from blame or responsibility for something
Example
He was **off the hook** after his friend confessed.
idiom

over the horizon

Meaning
something that is expected to happen soon
Example
A big change in the market may be **over the horizon**.
idiom

over the moon

Meaning
extremely pleased or happy
Example
She was **over the moon** when she won the prize.
idiom

own the mistake

Meaning
to take responsibility for doing something wrong
Example
A good leader knows how to **own the mistake** and learn from it.
idiom

on edge

Meaning
to be nervous, tense, or irritable
Example
She’s been **on edge** since the exam started.
idiom

on background

Meaning
information given to a journalist that cannot be attributed to the source
Example
The official spoke **on background** about the new policy.
idiom

On the record

Meaning
Officially stated and reportable
Example
She made her statement **on the record** during the interview.
idiom

Out of fashion

Meaning
No longer trendy or popular
Example
Those jeans went **out of fashion** years ago.
idiom

on shaky ground

Meaning
in an uncertain or unstable situation
Example
His business is **on shaky ground** after the market crash.
idiom

on your last legs

Meaning
completely exhausted or near collapse
Example
After working 18 hours straight, I was **on my last legs**.
idiom

out of your league

Meaning
too good or powerful to compete with
Example
That company is **out of our league** in terms of resources.
idiom

overnight success

Meaning
a person or thing that becomes successful very quickly
Example
Her first song made her an **overnight success**.
idiom

on the warpath

Meaning
very angry and likely to argue or fight
Example
She was **on the warpath** after hearing the bad news.
idiom

on the mend

Meaning
recovering from an illness or injury
Example
I was sick last week, but I’m **on the mend** now.
idiom

on one's shoulders

Meaning
having the responsibility or burden of something
Example
The success of the project is **on his shoulders**.
idiom

on your plate

Meaning
something that is your responsibility or job to handle
Example
I have too much **on my plate** right now with all the projects.
idiom

out of bandwidth

Meaning
too busy or overwhelmed to handle more tasks
Example
I’m **out of bandwidth** today, can we talk tomorrow?
idiom

out of orbit

Meaning
beyond control; off the usual path
Example
The project went **out of orbit** after the manager left.
idiom

olive branch

Meaning
a gesture of peace or reconciliation
Example
The president extended an **olive branch** by inviting his rival to the summit.
idiom

outsmart the algorithm

Meaning
to beat or trick a system that uses AI or automation
Example
People try to **outsmart the algorithm** to boost their posts.
idiom

on the fast track

Meaning
advancing quickly in a career or project
Example
He is **on the fast track** to becoming a manager.
idiom

own up to

Meaning
to admit or confess to something you did wrong
Example
She finally **owned up to** breaking the vase.
idiom

on the rebound

Meaning
starting a new relationship soon after a breakup
Example
He started dating again **on the rebound**.
idiom

on the up and up

Meaning
honest; truthful; not involved in any wrongdoing
Example
She’s always been **on the up and up** with me.
idiom

out of balance

Meaning
to feel mentally or emotionally unstable
Example
Lack of rest can make you feel **out of balance**.
idiom

Out of curiosity

Meaning
Because of a desire to know or learn something.
Example
I asked him **out of curiosity**, not to interfere.
idiom

on the ball

Meaning
alert, smart, and quick to react
Example
You need to be **on the ball** to handle this job.
idiom

out of this world

Meaning
extremely good or impressive
Example
The food at that restaurant is **out of this world**.
idiom

on the same page

Meaning
to agree or have the same understanding about something
Example
Before we continue, let’s make sure we’re **on the same page**.
idiom

old flame

Meaning
a person one had a romantic relationship with in the past
Example
He met his **old flame** at the reunion.
idiom

open one's heart

Meaning
to express feelings or emotions honestly
Example
She finally decided to **open her heart** and share her feelings.
idiom

Open-minded

Meaning
Willing to consider new ideas or opinions.
Example
A good therapist must be **open-minded**.
idiom

on the level

Meaning
honest and sincere; not trying to deceive
Example
You can trust her—she’s **on the level**.
idiom

overfitting

Meaning
when a model performs well on training data but poorly on unseen data
Example
The model seems to be **overfitting** because it performs well on the training data but poorly on the test set.
idiom

out of sorts

Meaning
feeling slightly unwell or upset
Example
He’s been **out of sorts** since he caught that cold.
idiom

on the money

Meaning
exactly correct or accurate
Example
His prediction about the stock was **on the money**.
idiom

on the big screen

Meaning
appearing in a cinema film
Example
Her novel was adapted **on the big screen** last year.
idiom

open channels of communication

Meaning
to establish dialogue or discussion
Example
They tried to **open channels of communication** with the neighboring country.
idiom

On the breadline

Meaning
Living in poverty or with very little money.
Example
After losing his job, he was almost **on the breadline**.
idiom

on your own shoulders

Meaning
to be responsible for something yourself
Example
The success of this event rests **on your own shoulders**.
idiom

out of shape

Meaning
to be unfit or unhealthy due to lack of exercise
Example
I’m so **out of shape** after sitting at a desk all day.
idiom

on good terms with

Meaning
having a friendly and positive relationship with someone
Example
She’s **on good terms with** her ex-husband for the kids’ sake.
idiom

off the air

Meaning
no longer being broadcasted
Example
The show went **off the air** after ten years.
idiom

on cue

Meaning
exactly at the right moment
Example
The dog barked **on cue** when the actor opened the door.
idiom

Opportunity knocks but once

Meaning
Good opportunities are rare and should be seized when they appear.
Example
Don't miss the chance, **opportunity knocks but once**.
idiom

open up

Meaning
to become willing to share thoughts or to start operating
Example
He finally **opened up** about the challenges he’s facing.
idiom

open to abuse

Meaning
liable to be misused or exploited
Example
Facial recognition technology is **open to abuse** if not regulated.
idiom

out of bounds

Meaning
not allowed or beyond acceptable limits
Example
His rude comment was **out of bounds**.
idiom

out of the blue

Meaning
unexpectedly or without warning
Example
My old friend called me **out of the blue** after ten years.
idiom

out of the woods

Meaning
no longer in danger or difficulty
Example
She’s recovering now, so she’s **out of the woods**.
idiom

out for blood

Meaning
to be extremely determined to defeat or punish someone
Example
After losing last time, the team is **out for blood** this season.
idiom

off the top of your head

Meaning
to say something without deep thinking or preparation
Example
I can’t remember the exact number **off the top of my head**.
idiom

own your mistakes

Meaning
to take responsibility for what you did wrong.
Example
It’s important to **own your mistakes** and learn from them.
idiom

old friends are gold

Meaning
old friends are precious and valuable
Example
I always say, **old friends are gold**.
idiom

once in a blue moon

Meaning
very rarely
Example
I only see him **once in a blue moon**.
idiom

out with the old, in with the new

Meaning
to replace old things or ideas with new ones
Example
It's time for **out with the old, in with the new**.
idiom

on the dot

Meaning
exactly on time; punctual
Example
The meeting started **on the dot** at 10 a.m.
idiom

off the wall

Meaning
unusual or unconventional
Example
His ideas are often **off the wall**, but they sometimes work.
idiom

open heart

Meaning
to be honest and kind in feelings and actions
Example
He welcomed everyone with an **open heart**.
idiom

own up to something

Meaning
to admit or confess responsibility for something
Example
You should **own up to your mistakes** instead of blaming others.
idiom

online presence

Meaning
the existence and activity of a person or business on the internet
Example
A strong **online presence** is essential for digital marketing.
idiom

offline mode

Meaning
a state of being disconnected from the internet or unavailable
Example
He’s been in **offline mode** all weekend, not answering any messages.
idiom

opt out

Meaning
to choose not to participate
Example
Employees can **opt out** of the program if they want.
idiom

One step at a time

Meaning
Handle tasks gradually and not all at once.
Example
Don't stress, just take **one step at a time**.
idiom

on the beat

Meaning
a police officer's regular patrol route
Example
The officer was **on the beat** when he spotted the suspect.
idiom

open the floodgates

Meaning
to allow something to happen on a large scale; to trigger a chain reaction
Example
When the security flaw was leaked, it **opened the floodgates** for hackers worldwide.
idiom

out of harm’s way

Meaning
To be safe from danger or difficulty.
Example
Make sure the children are **out of harm’s way** before lighting the fire.
idiom

off the beaten path

Meaning
doing something unusual or original
Example
Her ideas are always **off the beaten path**.
idiom

own up to your mistakes

Meaning
to admit that you have done something wrong
Example
It takes courage to **own up to your mistakes**.
idiom

on the horizon

Meaning
likely to happen soon
Example
A new product launch is **on the horizon**.
idiom

on cloud nine

Meaning
extremely happy; overjoyed
Example
She was **on cloud nine** after getting the job.
idiom

on the right track

Meaning
to be going in the correct direction to achieve success
Example
Your plan sounds great — you’re **on the right track**.
idiom

on the house

Meaning
free of charge; paid for by the establishment
Example
The drinks were **on the house** tonight.
idiom

on the cutting block

Meaning
being considered for elimination or discontinuation
Example
Due to budget cuts, several research projects are now **on the cutting block**.
idiom

on the go

Meaning
always busy or active; traveling a lot
Example
She's always **on the go** with her work trips.
idiom

off the cuff

Meaning
to speak or perform without preparation
Example
He gave an **off the cuff** remark that impressed everyone.
idiom

Old hat

Meaning
Something that is outdated or no longer interesting
Example
That style is **old hat** now—no one wears it anymore.
idiom

off the beaten track

Meaning
in a place not visited by many people; remote or unusual
Example
We found a lovely beach **off the beaten track**.
idiom

off the top of my head

Meaning
without much thought or preparation
Example
Off the top of my head, I’d say we need more time.
idiom

on fire

Meaning
performing very well; full of energy and success
Example
The sales team is **on fire** this month!
idiom

offstage

Meaning
outside of public attention or in private life
Example
He is very different **offstage** than he appears in his shows.
idiom

open a new chapter

Meaning
to begin a new stage or period in life
Example
Graduating from university **opened a new chapter** in her life.
idiom

out like a light

Meaning
to fall asleep very quickly
Example
He was **out like a light** as soon as his head hit the pillow.
idiom

over it

Meaning
no longer interested or affected by something
Example
I'm totally **over it** now.
idiom

one in a million

Meaning
very special or rare
Example
Her kindness makes her **one in a million**.
idiom

on the rocks

Meaning
in trouble or likely to fail (especially a relationship or marriage)
Example
Their marriage is **on the rocks** after constant arguments.
idiom

on the tip of one's tongue

Meaning
when you can almost remember something but not quite
Example
His name is **on the tip of my tongue**, but I can’t recall it.
idiom

on the grapevine

Meaning
to hear gossip or rumor indirectly
Example
I heard **on the grapevine** that they’re getting divorced.
idiom

Out to pasture

Meaning
To retire someone or something from active use.
Example
The old manager was finally **put out to pasture** last year.
idiom

On the drawing board

Meaning
In the planning or design stage
Example
The new product is still **on the drawing board**, but it will be launched next year.
idiom

out of left field

Meaning
something unexpected or surprising
Example
His question came **out of left field** and shocked everyone.
idiom

On the clock

Meaning
Working, often with a strict time limit or deadline.
Example
I’m **on the clock** today, so I can’t waste any time.
idiom

open-hearted

Meaning
kind and honest in expressing feelings
Example
She is an **open-hearted** person who always listens.
idiom

once bitten, twice shy

Meaning
after an unpleasant experience, you are careful to avoid it happening again
Example
After losing money in the stock market, he became **once bitten, twice shy**.
idiom

on the gravy train

Meaning
to be in a situation where one makes a lot of money with little effort
Example
He’s been riding **on the gravy train** since he took over the family business.
idiom

out of one’s comfort zone

Meaning
doing something unfamiliar or challenging
Example
She stepped **out of her comfort zone** to take a new job.