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20 Most Common Phrases and Idioms in English

by Edwin CañasTuesday, May 13 2025

Ever feel like English speakers sprinkle their conversations with colorful phrases that leave you scratching your head?

From "a piece of cake" to "bite the bullet," these common sayings and idioms are the spice of the English language. 

To get you started on this essential journey, let’s dive into the list of 20 most common English phrases and idioms you absolutely need to know!

20 Common English Phrases and Their Meanings

image of common idioms in english

Mastering English idioms isn't just a linguistic flourish.

Without understanding common idioms, you risk misinterpreting the intended meaning, feeling lost in conversations, and struggling to express yourself naturally. 

So, here are 20 of the most common English phrases and idioms, each with a clear explanation to help you understand and use them effectively:

1. A Blessing in Disguise

This idiom means something that seems bad or unlucky at first but eventually results in something good.

This phrase suggests that negative initial appearances can hide positive long-term outcomes.

For example“Losing my job turned a disaster into a blessing in disguise, it pushed me to start my own successful business.”

2. A Piece of Cake

This idiom means something is very easy.

Just like eating a delicious slice of cake requires minimal effort, this phrase describes a task or activity that presents little to no difficulty.

For example"The exam was a piece of cake; I finished it in half the time."

3. Break A Leg

This is a common way to wish someone good luck, especially before a performance.

Its origin is debated, but it's thought to be rooted in superstitions in the theater where saying "good luck" was believed to bring bad luck.

For example"You have your presentation tomorrow? Break a leg!"

4. Bite The Bullet

This means to face a difficult or unpleasant situation with courage and stoicism.

Historically, biting a bullet was done to distract from pain during surgery without anesthesia. Now, it signifies enduring hardship bravely.

For example: "I didn't want to work overtime, but I had to bite the bullet and finish the project."

5. Call It A Day

This idiom means to stop working on something.

It suggests that enough work has been done for the present time and it's time to rest or move on to other activities.

For example: "It's getting late, let's call it a day and continue tomorrow."

6. Get Something Off Your Chest

This means to talk about something that has been bothering you and find relief.

It implies a feeling of burden or weight that is lifted once the issue is expressed.

For example"I had to get it off my chest and tell him how I really felt."

7. Let the Cat Out of the Bag

This idiom means to reveal a secret, often unintentionally.

The origin is uncertain, but one theory involves dishonest merchants swapping cats for valuable pigs in bags.

For example"I was trying to keep the surprise party a secret, but my sister let the cat out of the bag."

8. Once in a Blue Moon

This describes something that happens very rarely.

A blue moon is a rare occurrence (either the second full moon in a calendar month or an extra full moon in a season).

For example"I only go to the cinema once in a blue moon."

9. See Eye To Eye

This means to agree with someone. It suggests a shared perspective or understanding on a particular matter.

For example"My brother and I don't always see eye to eye on politics."

10. Take It with a Grain of Salt

This means to not completely believe something that you are told.

It comes from an ancient belief that taking something with a small amount of salt would help in digesting it, implying caution when accepting information.

For example"He tends to exaggerate, so take everything he says with a grain of salt."

Also Read: 45 Most Common English Phrases for Daily Routines

11. The Best of Both Worlds

This refers to a situation where you can enjoy two different opportunities or advantages at the same time.

It signifies an ideal scenario where conflicting desires can both be satisfied.

For example"Working from home gives me the best of both worlds: more time with my family and a fulfilling career."

12. To Cost an Arm and a Leg

This idiom means something is very expensive. It exaggerates the price by comparing it to losing valuable limbs.

For example"That new sports car costs an arm and a leg!"

13. To Feel Under the weather

This means to feel slightly unwell.

It's a vague way of saying you're not feeling your best, without specifying a particular illness.

For example"I'm feeling a bit under the weather today, so I might stay home."

14. To Kill Two Birds with One Stone

This means to solve two problems with a single action. 

It describes an efficient way of achieving multiple goals simultaneously.

For example"I can kill two birds with one stone by picking up the groceries on my way to the post office."

15. To Get Your Act Together

This means to organize yourself and start behaving effectively.

It's a call to become more responsible and focused on achieving goals.

For example"He needs to get his act together if he wants to pass his exams."

16. To Miss the Boat

This idiom means to be too late to take advantage of an opportunity.

It evokes the image of missing a departing ship and losing the chance to travel with it.

For example"The deadline has passed, so you've missed the boat on applying for the scholarship."

17. To Be in the Same Boat

This means to be in the same difficult situation as someone else.

It suggests a shared experience of hardship or challenge.

For example"We're all facing budget cuts, so we're in the same boat."

18. To Make a Long Story Short

This phrase is used when you want to quickly summarize something.

It indicates that you are omitting details to get to the main point.

For example"To make a long story short, we decided to sell the house."

19. To Be on Cloud Nine

This idiom means to be extremely happy.

It suggests a feeling of being blissfully joyful and elated.

For example"She was on cloud nine after getting the job offer."

20. To Stick to Your Guns

This means to stand firm on your beliefs or decisions, even when facing opposition.

It implies unwavering conviction in one's stance.

For example"Despite the criticism, he decided to stick to his guns and implement the new policy."

Also Read: 10 Tips to Improve Your English Speaking Skills

Conclusion

There you have it! 20 powerful idioms to unlock more fluent and nuanced English communication. 

So, what are you waiting for? Dive in, start practicing, and watch your English skills go from zero to hero!

Don’t forget to visit EZClass and EZClass blog to discover more interesting and fun topics.


 

Edwin Cañas

Edwin Cañas

Founder of EZClass

Edwin Cañas is an expert in e-learning, leadership, and educational technology. As COREnglish’s Director of Operations and founder of EZClass, he strives to make learning more engaging and accessible. He also co-authored the "How to Master Grammar for Beginners (Spanish Edition)" book to help Spanish learners master English with ease.

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