double-cross someone
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idiom

double-cross someone

Meaning
to betray someone after pretending to support them
Example
He promised to help but **double-crossed** me in the end.
idiom

the dawn of a new day

Meaning
a new beginning filled with hope
Example
Her graduation marked **the dawn of a new day** in her life.
idiom

reach your full potential

Meaning
to achieve the maximum ability or success that you are capable of
Example
By working hard, she was able to **reach her full potential**.
idiom

caught between a rock and a hard place

Meaning
in a difficult situation where any choice you make will have negative consequences
Example
I'm **caught between a rock and a hard place** - both options are terrible.
idiom

pioneer new ideas

Meaning
to introduce or create new concepts or methods
Example
He is always looking to **pioneer new ideas** in his field.
idiom

Light a fire under someone

Meaning
To motivate someone to take action or work harder.
Example
The coach’s speech really **lit a fire under** the players.
idiom

brainchild of

Meaning
an idea or invention created by someone
Example
ChatGPT is the **brainchild of** OpenAI researchers.
idiom

cracks in the wall

Meaning
signs of problems or weaknesses in a system or relationship
Example
There are **cracks in the wall** of their friendship lately.
idiom

Give the shirt off your back

Meaning
to give everything you can to help someone
Example
She would **give the shirt off her back** if it meant helping her friends.
idiom

sitting on a gold mine

Meaning
to have something very valuable that is not yet realized
Example
That old property is worth millions — you're **sitting on a gold mine**.
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

bottle up emotions

Meaning
to keep feelings inside and not express them
Example
He tends to **bottle up his emotions**, which isn't healthy in the long run.
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

swept off your feet

Meaning
to be suddenly and strongly attracted to someone
Example
She was **swept off her feet** by his charm.
idiom

have nerves of steel

Meaning
to be very brave and calm under pressure
Example
A firefighter must **have nerves of steel** to face danger every day.
idiom

veer off

Meaning
to suddenly change direction
Example
The conversation **veered off** into weekend plans.
idiom

carry the world on your shoulders

Meaning
to feel responsible for everything; to take on too much stress
Example
You can’t **carry the world on your shoulders**; learn to share the load.
idiom

as thick as two short planks

Meaning
very stupid or slow-witted
Example
He’s **as thick as two short planks**, bless him.
idiom

strike while the iron is hot

Meaning
to take advantage of an opportunity immediately
Example
The market conditions are perfect, so we need to **strike while the iron is hot**.
idiom

blow your top

Meaning
to become very angry
Example
He **blew his top** when he found out about the mistake.
idiom

give someone a shot in the arm

Meaning
to boost someone’s confidence or enthusiasm
Example
The victory **gave the team a shot in the arm** before the final.
idiom

free up

Meaning
to make time, money, or space available
Example
Clearing old files will **free up** storage on the drive.
idiom

jump the gun

Meaning
to start something too soon
Example
They **jumped the gun** by announcing the news early.
idiom

share the love

Meaning
to show support or appreciation by liking or sharing someone’s post
Example
**Share the love** by liking and commenting on this post!
idiom

keep faith with someone

Meaning
to remain loyal to someone or something
Example
Even in hard times, she **kept faith with** her friends.
idiom

reinforcement learning

Meaning
a type of machine learning where an agent learns to make decisions by performing actions and receiving feedback
Example
In **reinforcement learning**, the model improves over time as it learns from trial and error.
idiom

battle-tested

Meaning
proven effective through experience or hardship
Example
She’s a **battle-tested** leader who knows how to stay calm under pressure.
idiom

go bananas

Meaning
to become very excited or angry
Example
The crowd **went bananas** when their team scored.
idiom

prodigal son

Meaning
a person who leaves home and returns repentant after wasting wealth or opportunities
Example
After years abroad, he returned home like **the prodigal son**.
idiom

a cog in the machine

Meaning
a small but essential part of a large system
Example
Every engineer is **a cog in the machine** that keeps the factory running.
idiom

teach by example

Meaning
to show others how to do something by demonstrating it yourself
Example
Good mentors always **teach by example**, showing the way with their actions.
idiom

lose touch

Meaning
to stop communicating with someone
Example
We **lost touch** after college.
idiom

to hack into

Meaning
to gain unauthorized access to a system or network
Example
The attackers managed **to hack into** the company's internal servers.
idiom

a splash of color

Meaning
a small amount of bright color added for effect
Example
Add **a splash of color** to make the room lively.
idiom

after the rain comes the rainbow

Meaning
good times follow bad times
Example
Don’t lose faith; **after the rain comes the rainbow**.
idiom

make your own luck

Meaning
to create opportunities for yourself through effort
Example
Don’t wait for miracles — **make your own luck**.
idiom

to learn the hard way

Meaning
to learn by making mistakes or through difficult experiences
Example
He **learned the hard way** that honesty is the best policy.
idiom

come to light

Meaning
to become known or revealed
Example
The truth finally **came to light** after many years.
idiom

a stepping stone

Meaning
an event or experience that helps one to progress
Example
This internship was **a stepping stone** to my career.
idiom

in full swing

Meaning
at the peak of activity or progress
Example
The dance rehearsal is **in full swing** before the big day.
idiom

blow up in your face

Meaning
a plan or situation that suddenly goes wrong and causes trouble
Example
His plan to impress the boss **blew up in his face**.
idiom

lose one's temper

Meaning
to become very angry
Example
He **lost his temper** when he saw the mess.
idiom

bargain for

Meaning
to expect or plan for something
Example
The workload was more than we **bargained for**.
idiom

Take a leap of faith

Meaning
to do something uncertain, trusting that it will succeed
Example
Starting her own company was a **leap of faith**, but it paid off.
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

the naked truth

Meaning
the complete and unvarnished truth
Example
She told me **the naked truth** about what happened.
idiom

crunch the numbers

Meaning
to process data or analyze statistics
Example
AI can **crunch the numbers** faster than any human.
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

open up about

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

go by the book

Meaning
to follow rules or procedures strictly
Example
The officer always **goes by the book** during inspections.
idiom

Under the spotlight

Meaning
Receiving public attention or scrutiny.
Example
The editor has been **under the spotlight** after the controversial article.
idiom

wave the white flag

Meaning
to surrender or give up
Example
After a long debate, he finally **waved the white flag**.
idiom

turn a corner

Meaning
to begin to improve after a difficult period
Example
Things started to **turn a corner** after the new management took over.
idiom

learning on the fly

Meaning
to adapt and learn quickly without prior preparation
Example
AI systems are **learning on the fly** from user data.
idiom

break into

Meaning
to enter a new field or profession successfully
Example
She managed to **break into** the film industry last year.
idiom

full of the joys of spring

Meaning
very happy and energetic
Example
She’s **full of the joys of spring** after her vacation.
idiom

Go all out

Meaning
To use all your energy and resources to achieve something.
Example
They **went all out** to make the event a success.
idiom

give someone the third degree

Meaning
to question someone intensely
Example
The police **gave him the third degree** after the incident.
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

train of thought

Meaning
a connected series of thoughts
Example
I lost my **train of thought** during the presentation.
idiom

keep a stiff upper lip

Meaning
to not show your emotions in difficult situations
Example
Even after losing the match, the team **kept a stiff upper lip**.
idiom

under a cloud

Meaning
being suspected or in trouble
Example
He left the company **under a cloud** after the scandal.
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

break up

Meaning
to end a romantic relationship
Example
They decided to **break up** after five years together.
idiom

in a pickle

Meaning
in a difficult or tricky situation
Example
I'm **in a pickle** because I double-booked my meetings.
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

place trust in

Meaning
to rely on someone or something
Example
I **place my trust in** you to handle this task.
idiom

swear on one’s life

Meaning
to make a very serious promise that something is true
Example
I **swear on my life**, I didn’t do it!
idiom

seeing is believing

Meaning
only what one sees can be believed; things must be experienced to be believed.
Example
I was skeptical at first, but when I saw the results, I realized **seeing is believing**.
idiom

off the wall

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

data-driven decision making

Meaning
making decisions based on data analysis rather than intuition or personal experience
Example
In the world of business, **data-driven decision making** is crucial for success.
idiom

bull market

Meaning
a period when prices of stocks are rising
Example
Investors are optimistic during a **bull market**.
idiom

tear into someone

Meaning
to criticize someone angrily
Example
The coach **tore into** the players after they lost the game.
idiom

penny wise and pound foolish

Meaning
careful with small amounts of money but wasteful with large amounts
Example
He’s **penny wise and pound foolish** when it comes to investments.
idiom

a roof over your head

Meaning
a place to live; a shelter
Example
At least we have **a roof over our heads**.
idiom

add fuel to the fire

Meaning
to make a bad situation worse
Example
Your comments **added fuel to the fire**.
idiom

a heart-to-heart

Meaning
a sincere and open conversation
Example
We had **a heart-to-heart** about our future plans.
idiom

cry one’s heart out

Meaning
to cry very hard due to sadness
Example
She **cried her heart out** after the breakup.
idiom

hope against hope

Meaning
to continue hoping even when it seems impossible
Example
They **hoped against hope** that their team would win.
idiom

line up for

Meaning
to queue in anticipation of something
Example
Fans will **line up for** tickets at dawn.
idiom

machine learning curve

Meaning
the process of gradual improvement through experience and learning
Example
The new developers are still on their **machine learning curve**.
idiom

turn the other cheek

Meaning
to ignore insults or avoid taking revenge
Example
He chose to **turn the other cheek** instead of fighting back.
idiom

take the law into your own hands

Meaning
to punish someone without legal authority
Example
Citizens should not **take the law into their own hands**.
idiom

Tech-savvy

Meaning
Having good knowledge of modern technology.
Example
Our **tech-savvy** team built the prototype in just a week.
idiom

scene of the crime

Meaning
the place where something important happened
Example
We returned to the **scene of the crime** to find the truth.
idiom

back on track

Meaning
to return to the right path or plan
Example
After some delays, our trip is **back on track**.
idiom

light at the end of the tunnel

Meaning
sign of hope after a difficult period
Example
After months of struggle, she finally saw the **light at the end of the tunnel**.
idiom

out of the picture

Meaning
no longer involved or relevant
Example
After the gallery closed, the curator was **out of the picture**.
idiom

balance of power

Meaning
the distribution of power between nations to prevent any one nation from becoming too powerful
Example
The United Nations aims to maintain the **balance of power** among its member states.
idiom

The Midas touch

Meaning
The ability to make money or succeed in everything one does.
Example
She seems to have **the Midas touch**—every project she starts becomes a success.
idiom

ease into

Meaning
to enter a new activity slowly and comfortably
Example
The trainer helped us **ease into** the new routine.
idiom

flat broke

Meaning
having no money at all
Example
I was **flat broke** after paying all my bills this month.
idiom

dawn on

Meaning
to become clear to someone after not realizing
Example
It suddenly **dawned on** me that I’d left my wallet.
idiom

go off the deep end

Meaning
to become very angry or emotional suddenly
Example
She **went off the deep end** when she heard the bad news.
idiom

keep out

Meaning
to prevent someone or something from entering
Example
Close the windows to **keep out** the dust during the renovation.
idiom

think big

Meaning
to set ambitious and visionary goals
Example
Entrepreneurs must **think big** to make a real impact.
idiom

case closed

Meaning
the matter is settled or finished
Example
The evidence was clear, so it’s **case closed**.
idiom

to make a splash

Meaning
to attract a lot of attention or make a big impact
Example
Her new book **made a splash** in the literary world.
idiom

the big picture

Meaning
the overall view or perspective of a situation
Example
It’s important to look at **the big picture** before making decisions.
idiom

bring the curtain down

Meaning
to end something; to finish a performance or event
Example
The concert **brought the curtain down** on the music festival.
idiom

opt out of

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

a change of heart

Meaning
a change in one’s opinion or feelings
Example
She had **a change of heart** and decided to stay.
idiom

lose your temper

Meaning
to become angry suddenly
Example
He **lost his temper** when the kids broke the vase.
idiom

Caught with your pants down

Meaning
To be caught unprepared or embarrassed.
Example
The manager was **caught with his pants down** when asked about the figures.
idiom

a stroke of luck

Meaning
something good that happens by chance
Example
It was **a stroke of luck** that I found my lost wallet.
idiom

be accountable for

Meaning
to be responsible for something and able to explain it
Example
As the team leader, he is **accountable for the project's outcome**.
idiom

as easy as ABC

Meaning
very easy to do or understand
Example
For him, solving math problems is **as easy as ABC**.
idiom

pat yourself on the back

Meaning
to praise yourself for doing something well
Example
You should **pat yourself on the back** for finishing that project.
idiom

circle back

Meaning
to return to a topic or task later
Example
Let's **circle back** to this issue after lunch.
idiom

cancel culture

Meaning
the practice of withdrawing support from someone after they do something offensive
Example
Many celebrities fear **cancel culture** online.
idiom

hit the airwaves

Meaning
to start being broadcast on television or radio
Example
The new talk show will **hit the airwaves** next week.
idiom

a figure of speech

Meaning
a phrase used in a non-literal way for effect or emphasis
Example
When he said he could eat a horse, it was just **a figure of speech**.
idiom

chew someone out

Meaning
to angrily scold or criticize someone
Example
The coach **chewed out** the team for their poor performance.
idiom

pass sentence

Meaning
to announce a punishment in court
Example
The judge will **pass sentence** next week.
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

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

caught red-handed

Meaning
to be caught in the act of doing something wrong
Example
The thief was **caught red-handed** stealing the wallet.
idiom

hardwired to do something

Meaning
to be naturally inclined or programmed to behave a certain way
Example
Humans are **hardwired to** seek connection and belonging.
idiom

Go where no man has gone before

Meaning
To explore or attempt something that has never been done before.
Example
The mission to Mars aims to **go where no man has gone before**.
idiom

go through a transformation

Meaning
to undergo a significant change or improvement
Example
The company had to **go through a transformation** to survive in the competitive market.
idiom

keep your fingers crossed

Meaning
to hope for good luck
Example
I am **keeping my fingers crossed** for the exam results.