bosom friends
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idiom

bosom friends

Meaning
very close and intimate friends
Example
They have been **bosom friends** since childhood.
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

beginner’s luck

Meaning
success for someone inexperienced
Example
He won his first game — must be **beginner’s luck**.
idiom

burning ambition

Meaning
a very strong desire to achieve something
Example
He had a **burning ambition** to become a successful entrepreneur.
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 up

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

build a better mousetrap

Meaning
to improve an existing product or idea
Example
Every tech company tries to **build a better mousetrap** in its field.
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

bite off more than you can chew

Meaning
to take on a task that is too big to handle
Example
I think I **bit off more than I can chew** by agreeing to manage three projects at once.
idiom

by leaps and bounds

Meaning
to progress or improve very quickly
Example
Her English has improved **by leaps and bounds**.
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

blow out of the water

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

brainstorm an idea

Meaning
to discuss and think creatively to generate new ideas
Example
The teacher asked the class to **brainstorm ideas** for the project.
idiom

Bear with me

Meaning
Be patient with me.
Example
**Bear with me** while I fix this problem.
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

butterflies in the stomach

Meaning
feeling nervous or excited
Example
I always get **butterflies in my stomach** before a date.
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

breach of security

Meaning
a violation or failure to adhere to security protocols
Example
The company faced a significant **breach of security** last year.
idiom

be above board

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

burst out laughing

Meaning
to suddenly start laughing loudly
Example
Everyone **burst out laughing** at his joke.
idiom

bottle up feelings

Meaning
to keep emotions inside without expressing them
Example
It's not healthy to **bottle up your feelings** for too long.
idiom

big picture

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

be all smiles

Meaning
to look very happy and cheerful
Example
She was **all smiles** after hearing the good news.
idiom

bust someone

Meaning
to arrest or catch someone doing something illegal
Example
The officer was able to **bust someone** for selling drugs.
idiom

Bursting at the seams

Meaning
To be very full or crowded.
Example
The store was **bursting at the seams** during the sale.
idiom

build brand loyalty

Meaning
to create long-term trust and attachment to a brand
Example
Consistent quality helps **build brand loyalty** among customers.
idiom

blow your mind

Meaning
to impress or amaze someone greatly
Example
The new AI technology will **blow your mind**.
idiom

build one's confidence

Meaning
to increase one's self-assurance or belief in one's abilities
Example
Public speaking classes helped him **build his confidence**.
idiom

burn the midnight oil

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

bring up a family

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

break the chains

Meaning
to free oneself from restrictions or limitations
Example
She wanted to **break the chains** of social expectations.
idiom

break a leg

Meaning
to wish someone good luck in a performance
Example
Before the play started, everyone told her to **break a leg**.
idiom

Batten down the hatches

Meaning
To prepare for a difficult or dangerous situation.
Example
We’d better **batten down the hatches**; a storm is coming.
idiom

blue chip

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

branch out

Meaning
to expand into new activities or areas
Example
The bakery plans to **branch out** into catering services next year.
idiom

build trust

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

build character

Meaning
to develop positive qualities or strength through challenges
Example
Going through this process will **build character** in the team.
idiom

butterflies in one's stomach

Meaning
feeling nervous or anxious
Example
I had **butterflies in my stomach** before the interview.
idiom

blaze a trail

Meaning
to be the first to do something innovative
Example
She **blazed a trail** in renewable energy research.
idiom

black hole

Meaning
a situation where things disappear or are lost without explanation
Example
All the research data went into a **black hole** after the server crash.
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

brain like a sieve

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

behind the firewall

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

Bet the farm

Meaning
To risk everything on one big decision.
Example
He **bet the farm** on that business deal.
idiom

bloom where you are planted

Meaning
to make the best of the situation you are in
Example
Even in a small town, she managed to **bloom where she was planted**.
idiom

bootstrapping

Meaning
building a business without external funding
Example
He started his company through **bootstrapping**, using only his savings.
idiom

break a promise

Meaning
to fail to do what one promised
Example
She **broke her promise** and didn’t call him.
idiom

bright future ahead

Meaning
having positive prospects or possibilities
Example
With your hard work, you have a **bright future ahead**.
idiom

Born in the barn

Meaning
To have bad manners or lack social etiquette.
Example
Close the door! Were you **born in the barn**?
idiom

bubbling with joy

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

bat around

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

butterflies in my stomach

Meaning
feeling nervous or anxious
Example
I had **butterflies in my stomach** before the interview.
idiom

burst into tears

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

be at your wits' end

Meaning
to be so worried or upset that you don't know what to do
Example
I'm **at my wits' end** trying to calm the kids down.
idiom

back to square one

Meaning
to start over again
Example
After the computer crashed, I had to go **back to square one** with my report.
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

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

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

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

black box

Meaning
a system or process whose workings are not understood or transparent
Example
The neural network is often described as a **black box** because its decision-making process is not fully transparent.
idiom

brand awareness

Meaning
the extent to which consumers are familiar with a brand
Example
Our main goal is to increase **brand awareness** through social media.
idiom

brighten up

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

bottom out

Meaning
to reach the lowest point before improving
Example
Experts believe the market has **bottomed out**.
idiom

burn one’s fingers

Meaning
to suffer because of one’s own mistake
Example
He **burned his fingers** by investing in a risky business.
idiom

blast off

Meaning
to take off or start with great energy or enthusiasm
Example
The project is ready to **blast off** next week.
idiom

block out

Meaning
to ignore distractions or unpleasant thoughts
Example
She tried to **block out** the noise and continue working.
idiom

breaking the deadlock

Meaning
to end a situation where no progress is being made
Example
The negotiation team succeeded in **breaking the deadlock**.
idiom

break new ground

Meaning
to do something innovative or pioneering
Example
Their research **broke new ground** in medical science.
idiom

bottle up your feelings

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

break out in a cold sweat

Meaning
to suddenly start sweating due to fear or anxiety
Example
He **broke out in a cold sweat** before his job interview.
idiom

bend the rules

Meaning
to make exceptions; to modify rules slightly
Example
The teacher **bent the rules** to help the new student.
idiom

Breaking news

Meaning
New and important information being reported immediately
Example
We have **breaking news** about the election results.
idiom

burst with happiness

Meaning
to be full of great joy or excitement
Example
The parents **burst with happiness** when they saw their newborn baby.
idiom

bored to death

Meaning
extremely bored
Example
I was **bored to death** during the long lecture.
idiom

back to the drawing board

Meaning
to start over again after a failure
Example
Our proposal was rejected, so it's **back to the drawing board**.
idiom

build up your confidence

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

bury the differences

Meaning
to forget disagreements and be friendly again
Example
They decided to **bury their differences** and work together.
idiom

bank on

Meaning
to rely on or depend on something happening
Example
You can **bank on** her support during tough times.
idiom

blow out of proportion

Meaning
to exaggerate or overstate something
Example
The media **blew the story out of proportion**.
idiom

bring forward

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

burst with joy

Meaning
to be so happy that it’s hard to contain emotions
Example
The parents **burst with joy** when their child won the prize.
idiom

by and large

Meaning
generally speaking; on the whole
Example
**By and large**, we agree with your proposal.
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

brush off

Meaning
to dismiss something or someone as unimportant
Example
He tried to **brush off** the criticism during the meeting.
idiom

boot up

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

be at the helm

Meaning
to be in charge of or control something
Example
He was **at the helm** of the company when it became successful.
idiom

break down

Meaning
to start crying due to strong emotions
Example
She **broke down** when she heard the sad news.
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

brighten up your day

Meaning
to make someone feel happier
Example
Her smile can **brighten up your day** instantly.
idiom

blood, sweat, and tears

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

bravery in the face of danger

Meaning
showing courage even when facing danger
Example
The firefighter showed **bravery in the face of danger**.
idiom

blackout

Meaning
to lose consciousness temporarily
Example
He suddenly **blacked out** during the match.
idiom

botnet

Meaning
a network of computers infected with malware that are controlled remotely by a hacker
Example
The hacker used the **botnet** to launch a massive DDoS attack on the server.
idiom

beyond one's control

Meaning
not under one’s power or influence
Example
The situation is **beyond our control** now.
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

bookend something

Meaning
to mark the beginning and end of something
Example
Her career was **bookended** by two great performances.
idiom

brand ambassador

Meaning
a person who promotes a brand through personal influence
Example
They hired a celebrity as their **brand ambassador**.
idiom

beyond the scope

Meaning
outside the planned or expected area of focus
Example
The new feature was beyond the scope of the original project but added great value.
idiom

blossom into something

Meaning
to develop or become successful over time
Example
She **blossomed into** a confident and skilled leader.
idiom

build castles in the air

Meaning
to make unrealistic plans or dreams
Example
He’s always **building castles in the air** instead of acting.
idiom

Bring peace to

Meaning
To restore calm or tranquility in a situation.
Example
Her kind words helped **bring peace to** the argument.
idiom

blow a fuse

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

brainstorm ideas

Meaning
to think of new and creative ideas
Example
The class gathered to **brainstorm ideas** for the science project.
idiom

break into a cold sweat

Meaning
to start sweating due to fear or anxiety
Example
He **broke into a cold sweat** before giving his speech.
idiom

bad luck

Meaning
unfortunate or unlucky situation
Example
It’s just **bad luck** that it rained on our picnic day.
idiom

black hat

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

book someone

Meaning
to officially charge someone with a crime
Example
The police **booked** him for theft.
idiom

blur the lines

Meaning
to make the difference between two things less clear or distinct
Example
AI-generated art often **blurs the lines** between human creativity and machine output.
idiom

burning desire

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

bag of bones

Meaning
a very thin person
Example
After his illness, he turned into a **bag of bones**.
idiom

birds of a feather

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

break down the problem

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

burst with energy

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

blow away the cobwebs

Meaning
to refresh one’s mind or body after inactivity
Example
A short walk helped me **blow away the cobwebs**.
idiom

break even

Meaning
to have equal income and expenses, neither profit nor loss
Example
The company finally **broke even** after three years.
idiom

break away

Meaning
to separate from a group or routine
Example
She plans to **break away** from the commute by working remotely twice a week.
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

Break a sweat

Meaning
To exert effort or work hard at something.
Example
She didn't even **break a sweat** while finishing the entire project in one day.
idiom

build bridges

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