Old hat
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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Something that is outdated or no longer interesting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 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

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

on the money

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

own your mistakes

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

open up over

Meaning
to share personal thoughts because of a particular topic
Example
She finally **opened up over** her anxiety during group coaching.
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**.
phrasal-verb

open yourself up to feedback

Meaning
to be willing to receive and accept constructive criticism
Example
To grow, you need to **open yourself up to feedback** from others.
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.
phrasal-verb

own the mistake quickly

Meaning
to admit an error right away
Example
I **own the mistake quickly** and explain the fix to my team.
phrasal-verb

open up to trade

Meaning
to start allowing international trade or economic exchange
Example
Many developing nations are trying to **open up to trade** to attract foreign investment.
idiom

out of memory

Meaning
unable to think clearly; mentally exhausted
Example
After working all night, I was completely **out of memory**.
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.
phrasal-verb

open the lines of communication

Meaning
to start talking again after a period of silence
Example
She wanted to **open the lines of communication** with her best friend again.
phrasal-verb

own your progress

Meaning
to take pride in and acknowledge your personal growth
Example
You should **own your progress** and celebrate every small win.
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.
phrasal-verb

own up to mistakes

Meaning
to admit errors openly so they can be fixed
Example
Good leaders **own up to mistakes** before they snowball.
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**.
phrasal-verb

open hearts to

Meaning
to show kindness and acceptance toward people of other cultures
Example
We should **open our hearts to** people who are different from us.
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 of fashion

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

own up to

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

open onto

Meaning
to lead to a place or opportunity for connection
Example
This conversation could **open onto** a deeper understanding between us.
phrasal-verb

open eyes to

Meaning
to make someone realize or become aware of something important
Example
The film **opened people’s eyes to** the struggles of the poor.
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

on the big screen

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

on the horizon

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

overnight success

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

open up about kindness

Meaning
to speak honestly about acts of kindness or gratitude
Example
He finally **opened up about kindness** he received from strangers.
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.
phrasal-verb

open access to opportunities

Meaning
to make education, jobs, or services available to more people
Example
Digital transformation helps **open access to opportunities** globally.
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

old buddy old pal

Meaning
An affectionate way to refer to a longtime friend.
Example
Hey **old buddy old pal**, long time no see!
idiom

over the moon

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

on edge

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

once in a blue moon

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

on all fours

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

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

open up new horizons

Meaning
to create new opportunities for learning or understanding different cultures
Example
Studying abroad can **open up new horizons** for personal and cultural growth.
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

out of left field

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

on cue

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

off the wall

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

off the air

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

open up emotionally

Meaning
to allow others to see your feelings or emotional state
Example
He started to **open up emotionally** after therapy.
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

out of bounds

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

on your shoulders

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

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

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

on fire

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

open up new perspectives

Meaning
to help someone see things in a new or different way
Example
Traveling to different countries can **open up new perspectives** on life.
idiom

on the rise

Meaning
increasing or growing in value or number
Example
Tech stocks are **on the rise** this quarter.
idiom

on the cutting edge

Meaning
at the forefront of innovation or technology
Example
The laboratory is **on the cutting edge** of artificial intelligence research.
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.
phrasal-verb

opt for

Meaning
to choose one thing instead of another
Example
We decided to **opt for** the smaller but cheaper apartment.
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

off the beaten path

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

open the heart to

Meaning
to express your honest emotions to someone
Example
He finally **opened his heart to** his parents.
idiom

out of your mind

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

Old school

Meaning
Having traditional ideas or values; not modern
Example
My father still prefers handwritten letters; he’s really **old school**.
phrasal-verb

open up to ideas

Meaning
to be receptive to new and different ideas
Example
We should **open up to ideas** from junior staff as well.
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

opt in

Meaning
to choose to participate
Example
Employees can **opt in** to the wellness program.
idiom

off the top of one's head

Meaning
to say something without thinking carefully or checking
Example
**Off the top of my head**, I think there are five options.
phrasal-verb

opt against

Meaning
to decide not to choose a particular option
Example
After considering the risks, the company **opted against** the merger.
phrasal-verb

open up to joy

Meaning
to allow yourself to feel happiness and positivity
Example
When you **open up to joy**, life becomes brighter.
idiom

off the rails

Meaning
to become uncontrolled or chaotic
Example
After his friend moved away, his life went **off the rails**.
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

open up about

Meaning
to share personal thoughts or feelings
Example
He finally **opened up about** the project stress.
phrasal-verb

open yourself up to

Meaning
to allow yourself to express feelings or be vulnerable
Example
He learned to **open himself up to** love again.
idiom

own it

Meaning
to take pride in who you are or what you do
Example
Don’t be shy about your success—**own it**!
idiom

opt out of

Meaning
to choose not to participate in something
Example
You can **opt out of** the newsletter at any time.
phrasal-verb

own responsibility for

Meaning
to accept that you are accountable for something that happened
Example
He chose to **own responsibility for** the team’s delay.
phrasal-verb

open minds through dialogue

Meaning
to encourage understanding between cultures by communicating openly
Example
The conference aimed to **open minds through dialogue** between communities.
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

on your last legs

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

open relations with

Meaning
to start official or friendly relations with another country
Example
After years of tension, the two countries agreed to **open relations with** each other.
idiom

Out of curiosity

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

open yourself to experiences

Meaning
to be willing to try new cultural activities or perspectives
Example
When you **open yourself to experiences**, you grow beyond your comfort zone.
phrasal-verb

open up to diversity

Meaning
to become accepting and appreciative of different backgrounds or perspectives
Example
Education helps people **open up to diversity** and reduce prejudice.
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

old friend

Meaning
a friend you have known for a long time
Example
I met an **old friend** from college yesterday.
idiom

on one’s last legs

Meaning
to be near the end of one’s strength or life
Example
After the long hike, we were all **on our last legs**.
idiom

out of the blue

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

open up to peace

Meaning
to allow yourself to feel inner calmness
Example
Through meditation, I’ve learned to **open up to peace**.
idiom

open-hearted

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

on the grapevine

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

open yourself to

Meaning
to allow yourself to experience emotions or connections
Example
He finally decided to **open himself to** love again.
idiom

over it

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

open toward

Meaning
to show warmth or acceptance toward someone
Example
He became more **open toward** his classmates.
idiom

offbeat

Meaning
unusual; different from the norm
Example
His **offbeat** sense of humor makes everyone laugh.
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 fast track

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

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

own up

Meaning
to admit or confess to something.
Example
He finally **owned up** to breaking the vase.
phrasal-verb

open yourself up

Meaning
to make yourself emotionally vulnerable or honest
Example
It’s hard to **open yourself up** after being hurt.
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

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 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.
phrasal-verb

offer help

Meaning
to volunteer to assist someone kindly
Example
It’s thoughtful to **offer help** when someone is struggling.
idiom

On a shoestring budget

Meaning
To live or do something with very little money.
Example
They traveled across Asia **on a shoestring budget**.
phrasal-verb

open doors to

Meaning
to create opportunities for cultural connection or understanding
Example
Cultural exchange programs **open doors to** meaningful friendships worldwide.
idiom

out of bandwidth

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

open up to change

Meaning
to become willing to accept new ideas or practices
Example
Societies progress when people **open up to change**.
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

out of the box thinking

Meaning
thinking in a new, innovative, or creative way
Example
The solution requires **out of the box thinking** from all team members.
phrasal-verb

open up opportunities

Meaning
to create new chances or possibilities for learning or connection
Example
Understanding other cultures can **open up opportunities** for collaboration.
idiom

out of orbit

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

on good terms

Meaning
to have a friendly and peaceful relationship
Example
They are still **on good terms** even after the breakup.
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 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

on the market

Meaning
available for sale
Example
Their house has been **on the market** for over six months.