back each other up
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idiom

back each other up

Meaning
to support and help one another
Example
In a good team, members always **back each other up**.
idiom

Pop quiz

Meaning
a surprise test given without warning
Example
Our teacher gave us a **pop quiz** today.
idiom

stage fright

Meaning
nervousness before performing in front of an audience
Example
Even experienced actors sometimes get **stage fright**.
idiom

code of ethics

Meaning
a set of moral principles guiding AI development or usage
Example
Developers must follow a strict **code of ethics** in AI research.
idiom

hit the sack

Meaning
to go to bed
Example
I'm exhausted, so I'm going to **hit the sack** early tonight.
idiom

switch off

Meaning
to stop thinking about work or problems
Example
It’s important to **switch off** after a long day.
idiom

Cut one’s losses

Meaning
To stop doing something that is failing to avoid further loss.
Example
It’s better to **cut your losses** and exit the market now.
idiom

Throw down the gauntlet

Meaning
To challenge someone to fight or compete.
Example
He **threw down the gauntlet** by questioning his opponent’s honesty.
idiom

light the fire

Meaning
to inspire or motivate people to act passionately
Example
Her speech really **lit the fire** in the employees’ hearts.
idiom

to break new ground

Meaning
to do something innovative or unprecedented
Example
The company’s new app **broke new ground** in terms of user experience.
idiom

dial in

Meaning
to connect to a meeting or call remotely
Example
I’ll **dial in** from the airport lounge.
idiom

clear the decks

Meaning
Prepare for action by removing unnecessary things.
Example
We need to **clear the decks** before the new project begins.
idiom

my bad

Meaning
a casual way to admit a small mistake
Example
Oh, I forgot to bring your book — **my bad**!
idiom

tap into

Meaning
to make use of a resource or ability
Example
The startup hopes to **tap into** a new audience through social media.
idiom

in one’s element

Meaning
doing something one is good at or enjoys
Example
He’s **in his element** when he’s cooking for friends.
idiom

be on edge

Meaning
to be nervous, tense, or easily upset
Example
She’s been **on edge** all day waiting for the results.
idiom

No guts, no glory

Meaning
Without courage, you can’t achieve success.
Example
He took the challenge—**no guts, no glory**.
idiom

in a league of its own

Meaning
being far superior to others in a particular field.
Example
This smartphone is truly **in a league of its own** in terms of camera quality.
idiom

join the dots

Meaning
to connect pieces of information to understand the full picture
Example
AI systems can **join the dots** faster than humans when analyzing data.
idiom

ahead of the game

Meaning
to have an advantage or be well prepared
Example
She’s always **ahead of the game** with her planning.
idiom

carry on about

Meaning
to speak at length in an excited or annoyed way
Example
He kept **carrying on about** the missed deadline all morning.
idiom

run your own show

Meaning
to be in control of your own activities or business
Example
After years of working for others, he wanted to **run his own show**.
idiom

street smart

Meaning
having practical intelligence and experience, not just book knowledge
Example
He may not have a degree, but he’s very **street smart**.
idiom

well-oiled machine

Meaning
something that operates smoothly and efficiently
Example
Our engineering team runs like a **well-oiled machine**.
idiom

A true friend is one who stands by you

Meaning
A true friend will be there for you during difficult times
Example
Even in the worst of times, she proved to be a true friend. **A true friend is one who stands by you**.
idiom

grasp at straws

Meaning
to try any method to succeed, even if unlikely
Example
He was **grasping at straws** when he suggested that idea.
idiom

in the same orbit

Meaning
to be in agreement or share similar thoughts or goals
Example
We’re both **in the same orbit** when it comes to our project’s goals.
idiom

data encryption

Meaning
the process of converting data into a code to prevent unauthorized access
Example
Ensure all sensitive information is protected through **data encryption**.
idiom

take shape

Meaning
to begin to develop or become clear
Example
Our business plan is finally **taking shape**.
idiom

having a whale of a time

Meaning
enjoying yourself greatly
Example
We had **a whale of a time** at the beach yesterday.
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

get away from it all

Meaning
to take a break from daily routine; to relax
Example
We went to the countryside to **get away from it all**.
idiom

out of sorts

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

have mixed feelings

Meaning
to be uncertain or have both positive and negative emotions
Example
I **have mixed feelings** about moving to another city.
idiom

a man of integrity

Meaning
someone who is honest and morally upright
Example
He is known as **a man of integrity** in the business world.
idiom

be comfortable in your own skin

Meaning
to be confident and happy with who you are
Example
It took years for her to **be comfortable in her own skin**.
idiom

Push yourself

Meaning
Try to do better or go beyond your limits.
Example
You won’t improve unless you **push yourself**.
idiom

At the forefront

Meaning
being in a leading or important position in a field
Example
The research center is **at the forefront** of renewable energy studies.
idiom

chip in for

Meaning
to contribute money toward a shared cost
Example
Everyone agreed to **chip in for** a farewell cake.
idiom

Get off the ground

Meaning
To start successfully; to begin operating.
Example
Our startup finally **got off the ground** after months of planning.
idiom

AI arms race

Meaning
competition among companies or nations to lead in AI development
Example
Big tech companies are engaged in an **AI arms race**.
idiom

sell like hotcakes

Meaning
to sell very quickly and in large quantities
Example
After the ad went viral, the product began to **sell like hotcakes**.
idiom

pick a fight

Meaning
to start an argument intentionally
Example
Don’t **pick a fight** with him; he’s already angry.
idiom

at odds with

Meaning
to disagree or be in conflict with someone or something
Example
His views are **at odds with** the company policy.
idiom

to go down in history

Meaning
to be remembered for something important or significant
Example
He **went down in history** as one of the greatest inventors of all time.
idiom

Cut from the same cloth

Meaning
To be very similar in character or behavior.
Example
Those two brothers are **cut from the same cloth**.
idiom

Caesar’s wife must be above suspicion

Meaning
A person in a position of trust must be beyond any hint of wrongdoing.
Example
A judge should remember that **Caesar’s wife must be above suspicion**.
idiom

get a grasp of

Meaning
to understand something fully
Example
It took me a while to **get a grasp of** the new software.
idiom

touch and go

Meaning
a risky or uncertain situation where the outcome is doubtful
Example
It was **touch and go** whether he would survive the surgery.
idiom

extend an olive branch

Meaning
to offer peace or reconciliation
Example
After years of conflict, the president decided to **extend an olive branch**.
idiom

smooth over

Meaning
to make a problem seem less serious
Example
We need to **smooth over** the miscommunication with a quick call.
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

to weather the storm

Meaning
to successfully overcome a difficult or challenging situation
Example
Despite the economic downturn, the company managed **to weather the storm** and stay profitable.
idiom

carry out one's duties

Meaning
to perform one's assigned tasks or responsibilities
Example
He always **carries out his duties** with honesty and dedication.
idiom

hard act to follow

Meaning
someone or something so good that it’s difficult to replace
Example
The previous manager was a **hard act to follow**.
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

quiet down

Meaning
to become calmer or make less noise
Example
The kids finally **quieted down** after story time.
idiom

Speak the truth and shame the devil

Meaning
Speak the truth even if it may cause trouble or discomfort.
Example
She always believes that **speak the truth and shame the devil** is the right way.
idiom

red-eye flight

Meaning
a flight that leaves late at night and arrives early in the morning
Example
I took a **red-eye flight** to save a day on my trip.
idiom

Big fish in a small pond

Meaning
An important person in a small organization or area.
Example
He prefers being a **big fish in a small pond** rather than competing globally.
idiom

clear away

Meaning
to remove things to tidy a space
Example
Please **clear away** the dishes after lunch.
idiom

in the limelight

Meaning
to be the focus of public attention
Example
After winning the award, he was **in the limelight** for months.
idiom

lay off

Meaning
to dismiss someone from a job due to lack of work or money
Example
The company hopes to avoid having to **lay off** employees.
idiom

Speaking personally

Meaning
Expressing one’s personal view or opinion
Example
Speaking personally, I wouldn’t take that risk.
idiom

keep body and soul together

Meaning
to manage to stay alive or survive
Example
He worked day and night just to **keep body and soul together**.
idiom

opt in

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

poetic justice

Meaning
a situation in which virtue is rewarded and vice is punished, often ironically
Example
It was **poetic justice** when the dishonest lawyer lost his case due to his own lies.
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

win hands down

Meaning
to win easily or convincingly
Example
Our team **won hands down** in the final match.
idiom

chain reaction

Meaning
a series of events triggered by one event
Example
One breakthrough can start a **chain reaction** of new innovations.
idiom

Jump in at the deep end

Meaning
to take on a difficult task without preparation
Example
I had to **jump in at the deep end** when I started my new job.
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

take the rap

Meaning
to be punished or blamed for something, often unfairly.
Example
He **took the rap** for the team’s poor performance.
idiom

burn your fingers

Meaning
to suffer because of a bad decision or mistake
Example
He **burned his fingers** by trusting the wrong person.
idiom

think tank

Meaning
a group of experts developing new ideas or policies
Example
The **think tank** proposed innovative educational reforms.
idiom

brighten up

Meaning
to become happier or more cheerful
Example
Her face **brightened up** when she saw her friends.
idiom

go nuclear

Meaning
to react very strongly or angrily
Example
When the data got deleted, the manager **went nuclear**.
idiom

cool as a cucumber

Meaning
very calm and composed
Example
He stayed **cool as a cucumber** during the meeting.
idiom

up against the wall

Meaning
to be in a very difficult or desperate situation
Example
The company is **up against the wall** financially after the recent losses.
idiom

show true colors

Meaning
to reveal one’s real character or intentions
Example
He **showed his true colors** when he took charge of the team.
idiom

parcel out

Meaning
to divide and distribute something
Example
Let’s **parcel out** the tasks for the festival.
idiom

sit tight

Meaning
to stay calm and wait patiently
Example
Just **sit tight** and wait for the results.
idiom

a full plate

Meaning
to be very busy or have many things to do
Example
I can’t join the trip now; I’ve got **a full plate**.
idiom

faithful to the end

Meaning
staying loyal and supportive for a long time
Example
She was **faithful to the end** in her relationship.
idiom

cut both ways

Meaning
to have both positive and negative effects
Example
Working from home **cuts both ways** – you save time but lose social interaction.
idiom

The shot heard around the world

Meaning
An event with worldwide significance or impact.
Example
The invention of the internet was **the shot heard around the world** in communication.
idiom

break the clutter

Meaning
to stand out in a crowded or competitive market
Example
A good tagline can help a brand **break the clutter**.
idiom

hash it out

Meaning
to discuss a problem thoroughly to find a solution
Example
Let’s sit down and **hash it out** instead of fighting.
idiom

lose your marbles

Meaning
to become crazy or mentally unstable
Example
My boss must have **lost his marbles** to approve such a risky project.
idiom

without a care in the world

Meaning
free from worries or problems
Example
The kids were playing **without a care in the world**.
idiom

we'll cross that bridge when we come to it

Meaning
we will not worry about a possible future problem but will deal with it if it happens
Example
I don't know how we'll pay for the repairs, but **we'll cross that bridge when we come to it**.
idiom

grinning from ear to ear

Meaning
smiling broadly due to happiness
Example
He was **grinning from ear to ear** after receiving the gift.
idiom

step in

Meaning
to become involved in order to help or stop something
Example
The manager will **step in** if the discussion gets heated.
idiom

get along with someone

Meaning
to have a friendly relationship with someone
Example
They really **get along with each other** and are always laughing.
idiom

Miracles happen

Meaning
Unexpected good things can occur.
Example
Don’t lose faith—**miracles happen** every day.
idiom

freshen up

Meaning
to wash or tidy oneself to feel renewed
Example
Guests can **freshen up** in the lounge before dinner.
idiom

feel the strain

Meaning
to feel stress or pressure from a difficult situation
Example
Many employees are starting to **feel the strain** of the workload.
idiom

blank mind

Meaning
unable to think clearly or remember something
Example
During the exam, my **mind went blank**.
idiom

black box problem

Meaning
a situation where the internal workings of an AI system are not transparent or understood
Example
The biggest challenge in deep learning is the **black box problem**.
idiom

show leadership

Meaning
to demonstrate leadership qualities or skills
Example
She was able to **show leadership** during the crisis and guide the team through tough times.
idiom

make up for

Meaning
to compensate for something
Example
We’ll **make up for** the delay with extra support.
idiom

strike a balance

Meaning
to find a satisfactory compromise between two things
Example
It’s hard to **strike a balance** between career and family.
idiom

hit the nail on the head

Meaning
to be exactly right about something
Example
You **hit the nail on the head** with that analysis.
idiom

table a proposal

Meaning
to formally present a proposal for discussion
Example
The ambassador decided to **table a proposal** for regional cooperation.
idiom

build up your confidence

Meaning
to gradually become more confident
Example
Public speaking can help you **build up your confidence**.
idiom

doubt creeps in

Meaning
to begin to feel uncertain or unsure
Example
After a few failures, **doubt began to creep in**.
idiom

kind words cost nothing

Meaning
being kind doesn’t take effort or money
Example
Remember, **kind words cost nothing**.
idiom

Make every minute count

Meaning
Use your time effectively and make the most of every moment.
Example
To be successful, you need to **make every minute count** and stay focused on your tasks.
idiom

get wind of something

Meaning
to hear a rumor or piece of information
Example
The media **got wind of** the secret meeting.
idiom

hold all the cards

Meaning
to be in a strong position to control or influence a situation
Example
In the negotiations, the buyer **held all the cards**.
idiom

light bulb moment

Meaning
a sudden realization or new idea
Example
She had a **light bulb moment** while brainstorming for the campaign.
idiom

download information

Meaning
to absorb or receive information quickly
Example
She can **download information** faster than anyone else on the team.
idiom

faint-hearted

Meaning
lacking courage or determination
Example
Climbing this mountain is not for the **faint-hearted**.
idiom

burn your boats

Meaning
to commit yourself to a course of action without a way back
Example
He **burned his boats** when he quit his job to start a business.
idiom

Take it easy

Meaning
To relax and not worry too much.
Example
**Take it easy**, everything will be fine.
idiom

sweep someone off their feet

Meaning
to make someone fall in love with you suddenly
Example
His charm and confidence really **swept her off her feet**.
idiom

walk tall

Meaning
to behave confidently and proudly
Example
You have every reason to **walk tall** after your success.
idiom

eat someone alive

Meaning
to be extremely jealous or angry with someone
Example
She’s so jealous, she could **eat him alive**.
idiom

trust someone as far as you can throw them

Meaning
to not trust someone much
Example
I wouldn’t **trust him as far as I can throw him**.
idiom

cold war

Meaning
a state of political hostility and tension between countries without actual warfare
Example
During the 20th century, the United States and the Soviet Union were engaged in a **cold war**.
idiom

Blue skies thinking

Meaning
Creative or open-minded thinking without limits.
Example
Our brainstorming session encouraged **blue skies thinking**.