backpropagation
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idiom

backpropagation

Meaning
a learning algorithm used in neural networks to minimize error by adjusting weights through the network
Example
The **backpropagation** algorithm helps in optimizing the neural network's performance.
idiom

byte the bullet

Meaning
to face a difficult situation bravely
Example
We have to **byte the bullet** and fix the system bugs now.
idiom

big picture

Meaning
the overall perspective or situation
Example
Producers always try to see the **big picture** before making changes.
idiom

blue chip

Meaning
a well-established and financially sound company
Example
He prefers to invest in **blue chip** stocks for stability.
idiom

birds of a feather flock together

Meaning
People who have similar interests or personalities tend to be friends.
Example
John and Mike are always together; well, **birds of a feather flock together**.
idiom

burst with ideas

Meaning
to have many creative ideas at once
Example
After watching the film, he was **bursting with ideas** for his next project.
idiom

be thick as thieves

Meaning
to be very close friends
Example
Those two have been **thick as thieves** since childhood.
idiom

bring up a family

Meaning
to raise and take care of children
Example
They worked hard to **bring up a family**.
idiom

brainstorm

Meaning
to generate many creative ideas in a group discussion
Example
Let’s **brainstorm** some ideas for our next campaign.
idiom

burning the midnight oil

Meaning
working late into the night
Example
She’s been **burning the midnight oil** to finish the report.
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

Baptism of fire

Meaning
A person’s first difficult experience in a new job or role.
Example
Her first week as manager was a real **baptism of fire**.
idiom

burn a hole in one's pocket

Meaning
to spend money quickly or irresponsibly
Example
After receiving his bonus, he couldn't resist and **burned a hole in his pocket** by buying a new car.
idiom

burn rubber

Meaning
to drive very fast
Example
They **burned rubber** as they raced to the hospital.
idiom

blow the whistle

Meaning
to expose wrongdoing or reveal secret information
Example
He **blew the whistle** on the company’s illegal activities.
idiom

better safe than sorry

Meaning
It’s wiser to be cautious than to take risks and regret later.
Example
I always double-check the locks — **better safe than sorry**.
idiom

back into

Meaning
to move backwards into something unintentionally
Example
I nearly **backed into** the recycling bin while parking.
idiom

bear with

Meaning
to be patient with someone or something
Example
Please **bear with** us while we resolve the issue.
idiom

Breaking new ground

Meaning
To make an important new discovery or innovation; to do something that has never been done before.
Example
The new trade agreement is **breaking new ground** in international relations.
idiom

buy a lemon

Meaning
to buy something that is defective or worthless
Example
He **bought a lemon** when he got that used car.
idiom

birds of a feather

Meaning
people with similar interests or characteristics
Example
Tom and Jerry are always together—**birds of a feather**.
idiom

bond of friendship

Meaning
A strong connection of trust and affection between friends.
Example
Their **bond of friendship** grew stronger over the years.
idiom

be like family

Meaning
to be as close as family members
Example
My best friend is **like family** to me.
idiom

brush up on

Meaning
to improve one’s skill or knowledge
Example
She decided to **brush up on** her painting techniques.
idiom

Born with a silver spoon in one's mouth

Meaning
To be born into a wealthy family.
Example
He never had to struggle; he was **born with a silver spoon in his mouth**.
idiom

Barking up the wrong tree

Meaning
To pursue a mistaken or misguided course of action.
Example
If you think I'm guilty, you're **barking up the wrong tree**.
idiom

back off

Meaning
to move away or stop pressuring someone
Example
Let’s **back off** and give them space to decide.
idiom

bring to the table

Meaning
to contribute something useful or valuable
Example
Each team member **brings something unique to the table**.
idiom

blow one’s top

Meaning
to suddenly become very angry
Example
He **blew his top** when he saw the mistake.
idiom

bent over backwards

Meaning
to try very hard to help or please someone
Example
She **bent over backwards** to make sure everyone was happy.
idiom

bright-eyed and bushy-tailed

Meaning
alert and full of energy, especially in the morning
Example
He came to work **bright-eyed and bushy-tailed** after the weekend.
idiom

back on your feet

Meaning
recovered and healthy again
Example
It’s good to see you **back on your feet** after the flu.
idiom

break your back

Meaning
to work very hard to achieve something
Example
He’s been **breaking his back** to support his family.
idiom

blow someone's cover

Meaning
to reveal someone's secret identity or hidden purpose
Example
The journalist accidentally **blew the cover** of the undercover agent.
idiom

behind the firewall

Meaning
protected or isolated from external threats
Example
Sensitive company data should always stay **behind the firewall**.
idiom

Blue skies thinking

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

bury your head in the sand

Meaning
to ignore a problem hoping it will go away
Example
We can’t **bury our heads in the sand** about climate change any longer.
idiom

betray someone's trust

Meaning
to break someone's confidence in you
Example
She would never **betray your trust**.
idiom

button up

Meaning
to finish preparations or close something securely
Example
Let’s **button up** the proposal by Friday.
idiom

blow a fuse

Meaning
to suddenly become very angry or lose control
Example
He **blew a fuse** when he saw the mess.
idiom

beat down

Meaning
to strike repeatedly with force, such as intense sun or rain
Example
The afternoon sun **beat down** on the field all day.
idiom

ballpark figure

Meaning
an approximate estimate or number
Example
Can you give me a **ballpark figure** for the project cost?
idiom

Break with tradition

Meaning
To do something in a different way from what is usually done
Example
The couple decided to **break with tradition** and have a small wedding on the beach.
idiom

by the way

Meaning
used to introduce a new topic or add extra information
Example
**By the way**, did you finish your project?
idiom

bottle up your feelings

Meaning
to hide or suppress your emotions
Example
Don't **bottle up your feelings**; talk about them.
idiom

bring luck

Meaning
to cause good fortune
Example
This bracelet is said to **bring luck** to whoever wears it.
idiom

batten down

Meaning
to secure something tightly in preparation for trouble
Example
Residents will **batten down** their windows before the storm.
idiom

be in the driver’s seat

Meaning
to be in control of a situation
Example
After the merger, our company is **in the driver’s seat**.
idiom

bear the responsibility

Meaning
to take on the duty of something
Example
She was willing to **bear the responsibility** for the new project.
idiom

bridge the gap

Meaning
to reduce differences or improve relations
Example
The treaty aims to **bridge the gap** between the two sides.
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

butterflies in your stomach

Meaning
feeling nervous or anxious
Example
I always get **butterflies in my stomach** before a big presentation.
idiom

black sheep

Meaning
a person who is considered a disgrace to a group or family
Example
He is the **black sheep** of the family.
idiom

bend the truth

Meaning
to slightly change the truth to make something sound better
Example
He tends to **bend the truth** when telling stories.
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

bring forward

Meaning
to move something to an earlier time
Example
We had to **bring forward** the meeting due to travel.
idiom

beat the rap

Meaning
to escape punishment or avoid being convicted
Example
He managed to **beat the rap** thanks to a clever lawyer.
idiom

breakthrough

Meaning
a significant or sudden development or discovery; an important achievement
Example
The scientist made a major **breakthrough** in his research on cancer treatment.
idiom

branch off

Meaning
to separate from a main route or line of development
Example
The hiking path will **branch off** near the lake.
idiom

blow out of the water

Meaning
to surprise or defeat completely
Example
Their performance **blew us out of the water**.
idiom

book smart

Meaning
knowledgeable from studying rather than experience
Example
He’s **book smart** but lacks practical experience.
idiom

burst with energy

Meaning
to have a lot of energy and enthusiasm
Example
The children were **bursting with energy** during the game.
idiom

bite your tongue

Meaning
to stop yourself from saying something you want to say
Example
I had to **bite my tongue** when my boss took credit for my work.
idiom

build from the ground up

Meaning
to start something from the very beginning
Example
They **built their business from the ground up** with no investors.
idiom

bull market

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

bring to life

Meaning
to make something more interesting or realistic
Example
The artist’s use of color really **brought the painting to life**.
idiom

be above board

Meaning
to act in an honest and open manner
Example
She is always **above board** in all her dealings.
idiom

back out

Meaning
to withdraw from an agreement or commitment
Example
They can’t **back out** after signing the contract.
idiom

bear market

Meaning
a period when stock prices are falling
Example
Many people lose money during a **bear market**.
idiom

Behind the curve

Meaning
To be less advanced or slow compared to competitors.
Example
Our company is **behind the curve** in adopting AI technologies.
idiom

bail out

Meaning
to release someone from jail after paying bail money
Example
His family managed to **bail him out** after two days.
idiom

blood, sweat, and tears

Meaning
great effort and hard work
Example
Building this company took a lot of **blood, sweat, and tears**.
idiom

big data

Meaning
Extremely large data sets that may be analyzed computationally to reveal patterns, trends, and associations.
Example
The company uses **big data** to improve customer experience.
idiom

burn the midnight oil

Meaning
to work late into the night
Example
She **burned the midnight oil** to finish her project.
idiom

burst into tears

Meaning
to suddenly start crying
Example
She **burst into tears** after hearing the bad news.
idiom

blow your top

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

black hat

Meaning
a hacker with malicious intent
Example
**Black hats** often exploit vulnerabilities for personal gain.
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

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

beyond reasonable doubt

Meaning
without any logical uncertainty
Example
The jury found him guilty **beyond reasonable doubt**.
idiom

back on one’s feet

Meaning
to recover and be healthy again
Example
After a few days of rest, he’s finally **back on his feet**.
idiom

brush past

Meaning
to move quickly by someone or something with slight contact
Example
He **brushed past** the reporters without stopping.
idiom

brain like a computer

Meaning
to have an extremely analytical and efficient mind
Example
She remembers every detail; she has a **brain like a computer**.
idiom

born in the purple

Meaning
born into a wealthy or royal family
Example
He was **born in the purple**, so wealth was never an issue.
idiom

behind bars

Meaning
in prison
Example
The murderer will spend the rest of his life **behind bars**.
idiom

break the mold

Meaning
to do something differently from tradition
Example
She **broke the mold** by becoming the first female CEO.
idiom

believe in yourself

Meaning
to have confidence in your own abilities
Example
**Believe in yourself** and you can achieve anything.
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

be lost for words

Meaning
to be so surprised that you cannot speak
Example
I was **lost for words** when I won the prize.
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

build trust

Meaning
to create or develop trust in a relationship
Example
It takes time to **build trust** with new people.
idiom

Burn rate

Meaning
The rate at which a startup spends its capital.
Example
Our **burn rate** is too high; we need to cut costs.
idiom

blow one’s own trumpet

Meaning
to praise oneself; to boast about one's achievements
Example
He loves to **blow his own trumpet** whenever he achieves something.
idiom

beyond one’s grasp

Meaning
too difficult to understand or achieve
Example
Quantum physics is **beyond my grasp** right now.
idiom

big-hearted

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

breathe easy

Meaning
to relax after a stressful or dangerous situation
Example
After the pollution control laws were enforced, people could finally **breathe easy**.
idiom

boot up

Meaning
to start a computer or system
Example
My laptop takes forever to **boot up**.
idiom

beyond belief

Meaning
too surprising or shocking to believe
Example
His recovery was **beyond belief**.
idiom

build up your confidence

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

better late than never

Meaning
it’s better to do something late than not do it at all
Example
**Better late than never** – he finally apologized.
idiom

bloom where you’re planted

Meaning
make the best of your current situation
Example
Even in tough times, she **blooms where she’s planted**.
idiom

be a good sport

Meaning
to be fair and positive in difficult situations
Example
Even when she lost the game, she was **a good sport** and congratulated the winner.
idiom

beyond the pale

Meaning
outside acceptable rules or standards
Example
His behavior was **beyond the pale**.
idiom

blow someone's mind

Meaning
to amaze or astonish someone
Example
The magic show really **blew my mind**.
idiom

Balance the scales

Meaning
to make sure everything is fair or equal
Example
We need to **balance the scales** before making a final decision.
idiom

bat around

Meaning
to discuss ideas casually
Example
We spent the afternoon **batting around** marketing themes.
idiom

brain like a sieve

Meaning
having a very bad memory
Example
I keep forgetting things—I’ve got a **brain like a sieve**!
idiom

bubbling with joy

Meaning
very happy and excited
Example
The children were **bubbling with joy** after receiving their gifts.
idiom

build from scratch

Meaning
to start something from the very beginning
Example
They **built the company from scratch** with no outside funding.
idiom

break down the problem

Meaning
to analyze a problem step by step
Example
Let’s **break down the problem** to understand it better.
idiom

be a role model

Meaning
to be an example that others should imitate
Example
She is always a **role model** for younger employees in the company.
idiom

Be all ears

Meaning
To listen very attentively.
Example
I’m **all ears**, tell me what happened!
idiom

believe you can

Meaning
to have the mindset that you are capable of doing something
Example
If you **believe you can**, you’re halfway there.
idiom

buckle down

Meaning
to start working seriously
Example
If you want to pass the exam, you’d better **buckle down** and study.
idiom

butter wouldn’t melt in their mouth

Meaning
someone who looks innocent but might not be
Example
She looks so sweet—**butter wouldn’t melt in her mouth**.
idiom

bosom friend

Meaning
a very close and trusted friend
Example
We’ve been **bosom friends** since childhood.
idiom

break into a market

Meaning
to successfully enter a new market or industry
Example
The company is trying to **break into the Asian market**.
idiom

bang for your buck

Meaning
value for the money spent; a good deal
Example
This insurance plan gives you the best **bang for your buck**.
idiom

behind the eight ball

Meaning
to be in a difficult position or disadvantage
Example
Without proper funding, the project is **behind the eight ball**.
idiom

build bridges

Meaning
to improve relationships between people
Example
We need to **build bridges** between our two departments.