black box thinking
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idiom

black box thinking

Meaning
analyzing unknown processes by studying their inputs and outputs
Example
In AI research, **black box thinking** helps improve transparency.
idiom

wear one's heart on one's sleeve

Meaning
to openly show emotions or feelings
Example
He tends to **wear his heart on his sleeve** when it comes to helping others.
idiom

Airhead

Meaning
A silly or foolish person.
Example
Don't be such an **airhead**, pay attention!
idiom

make a killing

Meaning
to earn a large profit quickly
Example
They **made a killing** with their new tech product.
idiom

dig in your heels

Meaning
to refuse to give up or change your position
Example
He **dug in his heels** and refused to quit until he succeeded.
idiom

count your blessings

Meaning
be grateful for the good things in your life
Example
Instead of complaining, **count your blessings**.
idiom

set your sights high

Meaning
to aim for something ambitious
Example
Always **set your sights high** if you want to grow.
idiom

The light at the end of the tunnel

Meaning
A sign of hope after a long period of difficulty.
Example
After months of hard work, we finally saw **the light at the end of the tunnel**.
idiom

go with the flow

Meaning
to accept things as they come; not resist change
Example
Instead of worrying, just **go with the flow**.
idiom

big thanks

Meaning
an informal way to say thank you very much
Example
**Big thanks** to everyone who supported the project.
idiom

Jump ship

Meaning
To leave a job or organization suddenly.
Example
Several employees **jumped ship** when the new policy was announced.
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

go bananas

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

check over

Meaning
to examine something carefully for mistakes
Example
Let’s **check over** the draft before sending it.
idiom

gear toward

Meaning
to design or aim something for a particular group
Example
The course is **geared toward** new managers.
idiom

time is money

Meaning
time is valuable and should not be wasted
Example
In business, every minute counts because **time is money**.
idiom

to feel like a million bucks

Meaning
to feel very good or confident
Example
After the spa treatment, I **felt like a million bucks**.
idiom

keyboard warrior

Meaning
someone who posts aggressive or angry comments online
Example
He acts tough online, but he’s just a **keyboard warrior**.
idiom

Put all your eggs in one basket

Meaning
to risk everything on a single opportunity
Example
Don’t **put all your eggs in one basket**; invest in different sectors.
idiom

synergy

Meaning
the combined power of a group that is greater than the sum of individual efforts
Example
The **synergy** between the teams resulted in a groundbreaking product.
idiom

put on the map

Meaning
to make something or someone famous or well-known
Example
The viral campaign **put the brand on the map**.
idiom

Photo finish

Meaning
A very close competition
Example
The race ended in a **photo finish**.
idiom

the cutting edge

Meaning
the most advanced or innovative part of something
Example
This new design is at **the cutting edge** of architecture.
idiom

sleep tight

Meaning
to have a good and peaceful sleep
Example
Good night! **Sleep tight** and sweet dreams.
idiom

chart a new course

Meaning
to plan a new direction or strategy
Example
After the crisis, the CEO decided to **chart a new course**.
idiom

data-driven

Meaning
based on or influenced by data
Example
We make **data-driven** decisions to ensure the best outcome.
idiom

like a dog with two tails

Meaning
extremely happy and excited
Example
He was **like a dog with two tails** after getting the promotion.
idiom

answer the call

Meaning
to respond to a responsibility or opportunity
Example
He was ready to **answer the call** and take charge of the project.
idiom

rock the boat

Meaning
to cause problems or upset a stable situation
Example
Everything is going well, so let's not **rock the boat** with unnecessary changes.
idiom

under construction

Meaning
in the process of being developed or built
Example
Our new website is still **under construction**.
idiom

Open-minded

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

hard as nails

Meaning
very tough and determined
Example
She’s **hard as nails** when it comes to achieving her goals.
idiom

fall through

Meaning
to fail to happen
Example
Our travel plans might **fall through** if the storm hits.
idiom

high-risk, high-reward

Meaning
situations or decisions that involve a lot of risks but also offer the potential for great rewards
Example
Investing in emerging markets can be **high-risk, high-reward**, but the returns are worth it.
idiom

big-hearted

Meaning
very kind and generous
Example
He is known as a **big-hearted** man.
idiom

behind someone’s back

Meaning
to do something secretly without their knowledge
Example
She was talking about me **behind my back**.
idiom

Take off

Meaning
To begin to succeed rapidly; to leave the ground.
Example
Her business really **took off** after the new marketing campaign.
idiom

off the rails

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

The more you know, the more you realize you don’t

Meaning
The more you learn, the more you understand how much there is left to learn.
Example
**The more you know, the more you realize you don’t** — that’s the beauty of curiosity.
idiom

nod off

Meaning
to fall asleep suddenly, especially when sitting
Example
He **nodded off** during the boring lecture.
idiom

take a chill pill

Meaning
to calm down or relax; to not overreact
Example
Hey, **take a chill pill**! It’s not that serious.
idiom

Bet your bottom dollar

Meaning
To be very sure or confident about something.
Example
You can **bet your bottom dollar** that he’ll show up late again.
idiom

wise beyond his years

Meaning
showing maturity or wisdom greater than expected for one’s age
Example
Even as a child, he was **wise beyond his years**.
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 the cake

Meaning
to be the best or most outstanding
Example
Among all the entries, your design really **takes the cake**.
idiom

a barrel of laughs

Meaning
someone or something very funny or entertaining
Example
The new comedy show is **a barrel of laughs**.
idiom

At your own risk

Meaning
You are responsible for any possible danger or loss.
Example
You can enter the cave, but it’s **at your own risk**.
idiom

wrap your head around something

Meaning
to succeed in understanding something difficult or strange
Example
I'm still trying to **wrap my head around** this new software.
idiom

weigh the pros and cons

Meaning
to consider the advantages and disadvantages before making a choice
Example
You should **weigh the pros and cons** before quitting your job.
idiom

put one's trust in

Meaning
to place reliance or faith in someone or something
Example
He decided to **put his trust in** the new system.
idiom

circle back

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

hash out

Meaning
to work through the details of something by discussion
Example
They stayed late to **hash out** the final budget cuts.
idiom

pluck up the courage

Meaning
to make yourself feel brave enough to do something
Example
He finally **plucked up the courage** to speak in public.
idiom

clean up your act

Meaning
to start behaving more responsibly.
Example
You need to **clean up your act** if you want that promotion.
idiom

a lawyer's brief

Meaning
a summary or concise statement of an argument or case
Example
The **lawyer's brief** was submitted to the judge before the trial began.
idiom

hit a snag

Meaning
to face an unexpected problem or obstacle
Example
The project **hit a snag** when the server went down.
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

be responsible for

Meaning
to be in charge of or accountable for something
Example
She is **responsible for** managing the entire department.
idiom

A little knowledge is a dangerous thing

Meaning
Knowing a small amount about something can lead to mistakes.
Example
**A little knowledge is a dangerous thing** — don’t try to fix it if you’re not an expert.
idiom

show compassion

Meaning
to express care or sympathy toward others
Example
We should **show compassion** to those in need.
idiom

lose your nerve

Meaning
to become too frightened to do something
Example
I was going to ask her out, but I **lost my nerve**.
idiom

beat the algorithm

Meaning
to find a way to outsmart or bypass a system's logic
Example
Marketers always try to **beat the algorithm** for better reach.
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

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

slippery slope

Meaning
a situation that can lead to serious problems if not controlled
Example
Allowing AI to make moral decisions is a **slippery slope**.
idiom

hit a home run

Meaning
to achieve great success
Example
The new marketing campaign really **hit a home run** with its audience.
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

head off for

Meaning
to depart for a destination
Example
We’ll **head off for** the airport at 5 a.m.
idiom

make the grade

Meaning
to reach the desired standard or level
Example
Only a few students **made the grade** in the final test.
idiom

crazy about someone

Meaning
to be deeply attracted or infatuated with someone
Example
She’s **crazy about** her new boyfriend.
idiom

let bygones be bygones

Meaning
to forget past disagreements and forgive each other
Example
They decided to **let bygones be bygones** and move forward.
idiom

keep the peace

Meaning
to maintain order and avoid conflict
Example
The police were called to **keep the peace** during the protest.
idiom

jump out of one’s skin

Meaning
to be extremely excited or surprised
Example
I almost **jumped out of my skin** when I saw my old friend after years.
idiom

calm down

Meaning
to become less angry or upset
Example
Please **calm down**, everything is under control.
idiom

keep your eyes on the prize

Meaning
to stay focused on your goal despite difficulties
Example
Even during tough times, she **kept her eyes on the prize**.
idiom

take the bull by the horns

Meaning
to face a difficult situation directly and with courage
Example
She decided to **take the bull by the horns** and confront her manager.
idiom

stay the course

Meaning
to continue doing something until it is finished or successful
Example
It’s hard, but you need to **stay the course**.
idiom

cross your heart

Meaning
to make a sincere promise
Example
I’ll never tell anyone, **cross my heart**.
idiom

hit back

Meaning
to reply to criticism or attack with force
Example
The team plans to **hit back** with a stronger strategy.
idiom

hit upon an idea

Meaning
to suddenly think of a good idea
Example
I **hit upon an idea** for improving the app.
idiom

over the hill

Meaning
past one's prime; no longer young or at peak performance
Example
Some people think turning forty means you’re **over the hill**, but that’s not true.
idiom

your guess is as good as mine

Meaning
I do not know the answer to a question
Example
I don't know what time the movie starts. **Your guess is as good as mine**.
idiom

algorithm

Meaning
a set of rules or instructions for solving a problem or performing a task
Example
The **algorithm** sorts the data into categories.
idiom

Keep someone posted

Meaning
To keep someone informed about something.
Example
Please **keep me posted** about any updates.
idiom

give someone a hand

Meaning
to help someone with a task
Example
Could you **give me a hand** with dinner?
idiom

burning desire

Meaning
a strong motivation to achieve something
Example
He has a **burning desire** to succeed in life.
idiom

mums the word

Meaning
keep silent about a secret
Example
**Mum’s the word** about the new project.
idiom

on good terms

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

forever grateful

Meaning
thankful for something for a long time
Example
I’ll be **forever grateful** for what you’ve done.
idiom

to burn one's fingers

Meaning
to suffer from a bad experience or mistake
Example
He **burned his fingers** investing in that fake company.
idiom

third time lucky

Meaning
succeeding after two failures
Example
He failed twice, but maybe he’ll be **third time lucky**.
idiom

caught off guard

Meaning
surprised or shocked by something unexpected
Example
She was **caught off guard** by the sudden question.
idiom

a cold war

Meaning
a state of political hostility without open warfare
Example
The two nations seem to be entering **a cold war** again.
idiom

head off to

Meaning
to leave for a particular place
Example
We should **head off to** the venue by noon.
idiom

to see the big picture

Meaning
to understand the larger or more important issue
Example
You need to **see the big picture** when making strategic decisions.
idiom

give someone a break

Meaning
to give someone a chance or show them mercy
Example
He’s new here, so **give him a break**.
idiom

hit the pause button

Meaning
to take a break or stop what you are doing temporarily
Example
After weeks of hard work, I decided to **hit the pause button** and relax for a while.
idiom

The waiting game

Meaning
A situation in which you must wait for something to happen.
Example
It’s all about **the waiting game** when you’re looking for a job.
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

beat a dead horse

Meaning
to waste time on a topic that has already been resolved
Example
Stop **beating a dead horse**; the decision is final.
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

a blank page

Meaning
a new beginning; an opportunity to start fresh
Example
After graduation, she saw her life as **a blank page** waiting to be written.
idiom

hear it through the grapevine

Meaning
to hear a rumor or unofficial news
Example
I **heard it through the grapevine** that they broke up.
idiom

envy eats the heart

Meaning
jealousy destroys one’s peace of mind
Example
**Envy eats the heart**, so stop comparing yourself to others.
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

saber rattling

Meaning
threatening military action to intimidate others
Example
The country’s recent **saber rattling** alarmed its neighbors.
idiom

race to the bottom

Meaning
a situation where companies or countries lower standards to remain competitive
Example
Reducing wages to attract investors can create a **race to the bottom**.
idiom

Cultural melting pot

Meaning
A place where different cultures blend together
Example
New York is often described as a **cultural melting pot**.
idiom

work like a dog

Meaning
to work very hard without rest
Example
She **works like a dog** to provide for her kids.
idiom

have a high opinion of yourself

Meaning
to think you are very good or important
Example
He **has a high opinion of himself** after getting the award.
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

bootstrap a startup

Meaning
to build a business using limited resources without external funding
Example
Many successful founders **bootstrapped their startups** in the early days.
idiom

take the plunge

Meaning
to decide to do something risky or difficult
Example
After years of thinking, he finally **took the plunge** and started his business.
idiom

To meet one’s Waterloo

Meaning
To encounter one’s ultimate defeat or failure.
Example
After years of success, the company finally **met its Waterloo**.
idiom

put to the test

Meaning
to see how good someone or something is
Example
Her knowledge was **put to the test** during the interview.
idiom

zoom in

Meaning
to focus closely on something
Example
Use the report to **zoom in** on customer trends.
idiom

see the light at the end of the tunnel

Meaning
to begin to see signs of improvement after a long period of difficulty
Example
After months of effort, we can finally **see the light at the end of the tunnel**.
idiom

drama queen

Meaning
a person who exaggerates or overreacts to situations
Example
Don’t be such a **drama queen**; it’s not that serious.
idiom

from the bottom of my heart

Meaning
with sincere gratitude
Example
I thank you **from the bottom of my heart** for everything.
idiom

tone down

Meaning
to make something less forceful or intense
Example
Could you **tone down** the colors in that slide?
idiom

blow someone away

Meaning
to impress or surprise someone greatly
Example
Her performance really **blew me away**.