behind enemy lines
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idiom

behind enemy lines

Meaning
in a hostile or dangerous situation
Example
Journalists were working **behind enemy lines** to report the truth.
idiom

Burst with gratitude

Meaning
To feel extremely thankful.
Example
She was **bursting with gratitude** after receiving help.
idiom

A Romeo

Meaning
A passionate lover or a romantic man.
Example
He acts like **a Romeo** around her.
idiom

ahead of the pack

Meaning
to be more successful than competitors
Example
Her innovative ideas always keep her **ahead of the pack**.
idiom

kick back

Meaning
to relax and do nothing for a while
Example
After finishing the project, we just **kicked back** and watched a movie.
idiom

a Eureka moment

Meaning
a moment of sudden discovery or realization
Example
He had **a Eureka moment** when he solved the equation.
idiom

bosom friends

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

fade to black

Meaning
to end something dramatically
Example
The director chose to **fade to black** at the emotional climax.
idiom

a catnap

Meaning
a short, light sleep
Example
I took **a catnap** after lunch.
idiom

brush up on

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

burning with envy

Meaning
feeling intense jealousy
Example
She was **burning with envy** when she heard about his promotion.
idiom

you’ve got this

Meaning
to reassure someone that they can handle a situation
Example
Don’t worry about the presentation—**you’ve got this**!
idiom

Fit like a glove

Meaning
To fit perfectly.
Example
This dress **fits like a glove** on you!
idiom

take the cake

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

machine learning fairness

Meaning
the concept of ensuring that machine learning models make unbiased, equitable decisions.
Example
The research team focused on improving **machine learning fairness** to eliminate discrimination.
idiom

no rocket scientist

Meaning
not very intelligent; not a genius
Example
He’s **no rocket scientist**, but he works hard.
idiom

long in the tooth

Meaning
getting old
Example
He’s a bit **long in the tooth** for this kind of work.
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

drop your guard

Meaning
to relax your vigilance or become less careful
Example
Never **drop your guard** when dealing with competitors.
idiom

scaling up

Meaning
to expand a business rapidly after initial success
Example
After their Series A funding, the team focused on **scaling up**.
idiom

tell tales

Meaning
to gossip or reveal secrets, often to get someone in trouble
Example
Stop **telling tales** about your coworkers.
idiom

hang by a thread

Meaning
to be in a very dangerous or uncertain situation
Example
After the accident, his life was **hanging by a thread**.
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

lend a listening ear

Meaning
to listen attentively and sympathetically
Example
Whenever I feel down, she always knows how to **lend a listening ear**.
idiom

Risk it for the biscuit

Meaning
To take a risk to achieve something worthwhile.
Example
He knew it was risky, but he decided to **risk it for the biscuit**.
idiom

Heart full of gratitude

Meaning
Deeply thankful and appreciative.
Example
She spoke with a **heart full of gratitude** for her teachers.
idiom

get a grip on yourself

Meaning
to control your emotions and behave calmly
Example
You need to **get a grip on yourself** before talking to your boss.
idiom

till the soil

Meaning
to prepare for future success by hard work
Example
He spent years **tilling the soil** before his business finally grew.
idiom

have a green thumb

Meaning
to be good at gardening
Example
My mother **has a green thumb** and grows beautiful flowers.
idiom

from the horse’s mouth

Meaning
directly from the original or reliable source
Example
I heard the news **from the horse’s mouth**.
idiom

phishing attempt

Meaning
an attempt to deceive someone into revealing personal or confidential information by pretending to be a trustworthy entity
Example
The email you received looks like a **phishing attempt**, so don't click any links.
idiom

Jump ship

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

zero-day exploit

Meaning
a cyberattack that occurs before a vulnerability is patched
Example
Hackers launched a **zero-day exploit** targeting the system’s core files.
idiom

in no time

Meaning
very quickly; almost immediately
Example
He finished the task **in no time**.
idiom

tip of the hat

Meaning
a gesture of appreciation or respect
Example
A **tip of the hat** to everyone who made this event possible.
idiom

Wear many hats

Meaning
To have many roles or responsibilities.
Example
As a small business owner, she **wears many hats**.
idiom

be thick as thieves

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

chicken out

Meaning
to decide not to do something because of fear
Example
He was going to ask her out but **chickened out** at the last minute.
idiom

a penny saved is a penny earned

Meaning
saving money is just as valuable as earning it
Example
My grandfather always said, '**a penny saved is a penny earned**.'
idiom

sell someone out

Meaning
to betray someone for personal gain
Example
He **sold me out** to save himself.
idiom

ramp up

Meaning
to increase the intensity or amount of something
Example
We need to **ramp up** production before the holidays.
idiom

ahead of the curve

Meaning
to be more advanced or innovative than others
Example
Their company is **ahead of the curve** in AI development.
idiom

pull the strings

Meaning
to control or influence someone or something secretly
Example
He got the job because his uncle **pulled the strings**.
idiom

skeleton in the closet

Meaning
a family secret that one wants to keep hidden
Example
Every family has a **skeleton in the closet** they don't talk about.
idiom

A nest egg

Meaning
A sum of money saved for the future or retirement.
Example
He built up a **nest egg** for his children's education.
idiom

take it to the bank

Meaning
to be certain that something is true or will happen
Example
You can **take it to the bank** that he’ll deliver on his promise.
idiom

to serve justice

Meaning
to ensure that fairness or punishment is properly given
Example
The court’s decision **served justice** for the victims.
idiom

get a word in edgewise

Meaning
to be able to say something during a conversation dominated by others
Example
He talked so much that no one could **get a word in edgewise**.
idiom

off script

Meaning
to deviate from a prepared plan or speech
Example
During the meeting, he went **off script** and made some bold statements.
idiom

in the same league

Meaning
comparable in quality or ability
Example
Those two companies aren’t **in the same league**.
idiom

hit the firewall

Meaning
to face a restriction or security block while trying to access something online
Example
I tried to visit the site but **hit the firewall** at work.
idiom

as wise as an owl

Meaning
very wise or knowledgeable
Example
My grandfather is **as wise as an owl**.
idiom

hit home

Meaning
to be fully understood or have a strong impact
Example
The reality of the housing crisis really **hit home** for them.
idiom

train a model

Meaning
to teach an AI model using data to make predictions or decisions
Example
We need to **train a model** on the new dataset before running predictions.
idiom

take a breather

Meaning
to rest for a short while to relax
Example
Let’s **take a breather** before continuing the meeting.
idiom

drill down into

Meaning
to examine something in great depth
Example
The analyst will **drill down into** the sales numbers for trends.
idiom

a picture is worth a thousand words

Meaning
a visual image can express complex ideas better than words
Example
That photo truly proves that **a picture is worth a thousand words**.
idiom

a tough cookie

Meaning
someone who is strong and not easily upset
Example
She’s **a tough cookie**; nothing can discourage her.
idiom

talk shop

Meaning
to talk about work or business during leisure time
Example
Even at dinner, they started to **talk shop**.
idiom

plant the seed

Meaning
to introduce an idea subtly to influence someone later
Example
He **planted the seed** for the project during the discussion.
idiom

latch onto

Meaning
to quickly embrace an idea or connect with someone
Example
The students quickly **latched onto** the new study app.
idiom

call a spade a spade

Meaning
to speak honestly and directly, even if it’s unpleasant
Example
She always **calls a spade a spade**, no matter who gets offended.
idiom

influencer marketing

Meaning
promoting products through influential people on social media
Example
Many brands invest in **influencer marketing** to reach younger audiences.
idiom

wrap your head around

Meaning
to understand or comprehend something difficult
Example
It took me a while to **wrap my head around** the new software.
idiom

the doctor ordered

Meaning
exactly what is needed or wanted
Example
After a long day, a cup of coffee was just **what the doctor ordered**.
idiom

on the market

Meaning
available for sale
Example
Their house has been **on the market** for over six months.
idiom

grow into

Meaning
to gradually become more capable or skilled at something
Example
He will eventually **grow into** the role of manager.
idiom

fall out with

Meaning
to argue or stop being friends with someone
Example
They **fell out with** each other over money.
idiom

get the word out

Meaning
to spread information or make something widely known
Example
We need to **get the word out** about our new service.
idiom

drop the ball

Meaning
to make a mistake or fail to do something important
Example
I really **dropped the ball** by forgetting to send that important email.
idiom

wallflower

Meaning
a shy person who avoids social activities
Example
She used to be a **wallflower**, but now she’s more confident.
idiom

comic relief

Meaning
a funny moment in a serious situation
Example
The movie’s sidekick provided much-needed **comic relief**.
idiom

have a splitting headache

Meaning
to have a very bad headache
Example
I can’t focus right now; I **have a splitting headache**.
idiom

Move heaven and earth

Meaning
To do everything possible to achieve something.
Example
They **moved heaven and earth** to save the project.
idiom

to take the bull by the horns

Meaning
to confront a problem or challenge directly and with determination
Example
We need to **take the bull by the horns** and start making decisions now.
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

count your blessings

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

backdoor access

Meaning
a secret or unauthorized way to access a system or information
Example
Hackers found a **backdoor access** to the company’s database.
idiom

to machine learn

Meaning
to learn automatically from data without human intervention
Example
The system continues **to machine learn** as more data is fed into it.
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

jump in

Meaning
to join an activity quickly
Example
Feel free to **jump in** if you have suggestions.
idiom

out of harm’s way

Meaning
To be safe from danger or difficulty.
Example
Make sure the children are **out of harm’s way** before lighting the fire.
idiom

give someone a piece of one’s mind

Meaning
to tell someone angrily what you think
Example
She **gave him a piece of her mind** for being rude.
idiom

feel comfortable in your own skin

Meaning
to be confident and relaxed about who you are
Example
She finally **feels comfortable in her own skin**.
idiom

settle the score

Meaning
to take revenge or resolve a conflict from the past
Example
He wanted to **settle the score** after last year's argument.
idiom

bring down the house

Meaning
to get an enthusiastic applause from the audience
Example
Her solo performance **brought down the house**.
idiom

friends in high places

Meaning
people with power or influence who can help you
Example
He got the job because he has **friends in high places**.
idiom

buckle under pressure

Meaning
to give in or fail due to too much stress or pressure
Example
Some employees **buckle under pressure**, while others thrive.
idiom

let your imagination run wild

Meaning
to allow yourself to think freely and creatively
Example
When writing stories, I always **let my imagination run wild**.
idiom

give it a rest

Meaning
to stop talking or thinking about something stressful
Example
You’ve been worrying too much—**give it a rest**.
idiom

the pen is mightier than the sword

Meaning
words and communication have more power than violence
Example
He believes **the pen is mightier than the sword**, so he fights with ideas, not weapons.
idiom

the apple of one's eye

Meaning
someone or something that is cherished or loved deeply
Example
Her son is truly **the apple of her eye**.
idiom

dance the night away

Meaning
to dance for a long time, especially during a celebration
Example
Everyone **danced the night away** at the wedding reception.
idiom

warm up to

Meaning
to gradually become more comfortable with someone or something
Example
She slowly **warmed up to** the new routine.
idiom

play a pivotal role

Meaning
to play an important part in something
Example
She played a **pivotal role** in the success of the team.
idiom

once bitten, twice shy

Meaning
after an unpleasant experience, you are careful to avoid it happening again
Example
After losing money in the stock market, he became **once bitten, twice shy**.
idiom

take the pressure off

Meaning
to make a stressful situation easier
Example
Hiring an assistant really **took the pressure off** me.
idiom

double back

Meaning
to turn around and go back the way you came
Example
We had to **double back** to grab the projector.
idiom

Put up walls

Meaning
To create emotional barriers or distance from others.
Example
After the breakup, she **put up walls** and stopped trusting people.
idiom

An old friend is better than two new ones

Meaning
Long-time friends are more valuable than new ones.
Example
I trust John more than anyone else—**an old friend is better than two new ones**.
idiom

lightning fast

Meaning
extremely fast
Example
She replied **lightning fast** to the email.
idiom

ahead of its time

Meaning
to be unusually advanced or innovative for its era
Example
That invention was **ahead of its time**.
idiom

on the sly

Meaning
secretly; in a sneaky way
Example
He met her **on the sly** without telling anyone.
idiom

save the day

Meaning
to prevent failure or disaster by taking timely action
Example
His quick thinking **saved the day**.
idiom

runway for growth

Meaning
the time or resources a startup has before it needs more funding
Example
The startup has enough **runway for growth** for the next 12 months.
idiom

to be fair

Meaning
used to introduce a balanced or just opinion
Example
**To be fair**, she did try her best.
idiom

The more you know, the less you know

Meaning
The more you learn, the more you realize how little you actually know.
Example
After years of study, he said, '**The more you know, the less you know**.'
idiom

There’s always hope

Meaning
No matter how bad things look, you can still hope.
Example
Don’t lose heart — **there’s always hope**.
idiom

have faith in

Meaning
to believe or trust in someone or something
Example
You should **have faith in** your abilities.
idiom

brush past

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

Exactly!

Meaning
Used to strongly show agreement
Example
‘It’s time to move on.’ ‘**Exactly!**’
idiom

green with jealousy

Meaning
extremely jealous
Example
He was **green with jealousy** when he saw her with someone else.
idiom

play one's cards close to one's chest

Meaning
to keep one's plans or ideas secret
Example
He always **plays his cards close to his chest** in business.
idiom

A rising tide lifts all boats

Meaning
When the economy improves, everyone benefits to some extent.
Example
When the new policies boosted trade, people said that **a rising tide lifts all boats**.
idiom

switch over

Meaning
to change from one system or option to another
Example
The team will **switch over** to the new software tonight.
idiom

out with the old, in with the new

Meaning
to replace old things or ideas with new ones
Example
It's time for **out with the old, in with the new**.
idiom

circle of friends

Meaning
a group of people you are friendly with
Example
She has a large **circle of friends** from college.
idiom

Keep an even keel

Meaning
To stay calm and steady, especially during difficulties.
Example
Despite the pressure, she **kept an even keel** throughout the project.
idiom

It’s not over till it’s over

Meaning
Don’t lose hope until the end.
Example
**It’s not over till it’s over**, we can still win this game.
idiom

plans are up in the air

Meaning
plans are uncertain or not decided yet
Example
Our travel plans are still **up in the air**.