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Knowledge Idioms

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Idioms are the spices of language, adding flavor to the conversations we have every day. They paint pictures with words, often encapsulating complex ideas into compact phrases. When we talk about knowledge, idioms can beautifully illustrate the value and power of knowing, understanding, or learning something. It’s fascinating how different cultures use language to convey the significance of knowledge through these unique expressions.

List of Knowledge Idioms

Knowledge Idioms
Knowledge Idioms – Created by 7ESL
  • Knowledge is power
  • Learn the ropes
  • Can’t make heads or tails of
  • Burning the midnight oil/ pull an all-nighter
  • Know something backwards and forwards
  • Doing your homework
  • Under one’s belt
  • Two heads are better than one
  • Pick his brain
  • Great minds think alike
  • As far as anyone knows
  • To the best of your belief/knowledge
  • A little learning is a dangerous thing
  • Book smart
  • Brainstorm
  • Crack a book
  • Hit the books
  • Street smart
  • Read between the lines

Knowledge Idioms with Meaning

IdiomMeaning
Knowledge is powerHaving knowledge or education increases one’s potential for influence and control.
Learn the ropesTo learn the basics or understand the details of how something is done.
Can’t make heads or tails ofTo be unable to understand or make sense of something.
Burning the midnight oil/pull an all-nighterStaying up very late or all night to work or study.
Know something backwards and forwardsTo be very familiar with or knowledgeable about something.
Doing your homeworkPreparing thoroughly for something, especially by researching.
Under one’s beltAcquired, achieved, or secured.
Two heads are better than oneCollaborating with someone else is often more effective than working alone.
Pick his brainAsk someone knowledgeable for information or advice.
Great minds think alikeIntelligent people often have similar ideas or thoughts.
As far as anyone knowsBased on the information available to people.
To the best of your belief/knowledgeAs far as one knows or believes to be true.
A little learning is a dangerous thingHaving a small amount of knowledge can lead to overconfidence and misunderstanding.
Book smartHaving knowledge from books and academic learning, rather than practical experience.
BrainstormTo think creatively and generate many ideas in a group or individually.
Crack a bookTo open and start reading a book, often implying that this is not done frequently.
Hit the booksTo study hard or begin studying with determination.
Street smartHaving the experience and knowledge necessary to deal with the challenges of everyday life, especially in urban environments.
Read between the linesTo understand the underlying or implicit meaning, rather than just the literal words.

Knowledge Idioms with Examples

IdiomExample
Knowledge is PowerShe always believed that knowledge is power, so she read extensively on a variety of topics.
Learn the RopesThe first month on the job was spent learning the ropes before taking on any major projects.
Can’t Make Heads or Tails ofI’ve been at this problem for hours, but I still can’t make heads or tails of it.
Burning the Midnight OilShe was burning the midnight oil to finish her thesis on time.
Pull an All-NighterHe pulled an all-nighter to study for the exam.
Know Something Backwards and ForwardsHe knows the software backward and forwards, which makes him an excellent troubleshooter.
Doing Your HomeworkBefore the meeting, she did her homework and came prepared with all the necessary data.
Under One’s BeltWith several successful projects under his belt, he felt confident to tackle more challenging tasks.
Two Heads Are Better Than OneWhen we couldn’t solve the problem individually, we realized two heads were better than one.
Pick His BrainI need some advice on this issue; I’ll pick his brain over lunch.
Great Minds Think AlikeDid you bring pizza for lunch? Great minds think alike; I did too!
As Far as Anyone KnowsAs far as anyone knows, the secret formula has never been revealed.
To the Best of Your Belief/KnowledgeTo the best of my knowledge, the information in this report is accurate and up to date.
A Little Learning is a Dangerous ThingHe tried fixing the electrical issues himself with a little learning, which is a dangerous thing.
Book SmartShe’s book smart but lacks the practical experience to apply her knowledge effectively.
BrainstormLet’s all sit down and brainstorm some new ideas for the marketing campaign.
Crack a BookHe never cracked a book but somehow managed to pass all his exams.
Hit the BooksThe exams are next week; it’s time to hit the books.
Street SmartHe may not have a formal education, but he’s street smart and knows how to handle tough situations.
Read Between the LinesThe official statement was optimistic, but reading between the lines, one could sense some underlying concerns.
B2 Knowledge Check · 5 questions

Knowledge Idioms — Practice Quiz

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Q1

Question 1: What does the idiom 'can't make heads or tails of' mean?

Question 1 options
'Can't make heads or tails of' means to be unable to understand or make sense of something. The other options describe different idioms related to knowledge.
Q2

Question 2: The idiom 'a little learning is a dangerous thing' means that having a small amount of knowledge is always better than having none at all.

Question 2 options
This is false. The idiom means that having a small amount of knowledge can lead to overconfidence and misunderstanding — not that a little knowledge is always beneficial.
Q3

Question 3: In which situation would it be most appropriate to use the idiom 'pick someone's brain'?

Question 3 options
'Pick someone's brain' means to ask a knowledgeable person for information or advice. Asking a colleague with expertise for guidance on a project is the best fit for this idiom.
Q4

Question 4: Match each knowledge idiom to its correct meaning.

Question 4 options
Learn the ropes
Hit the books
Read between the lines
Under one's belt
To learn the basics of how something is done
To study hard or begin studying with determination
To understand the hidden or implicit meaning
Something acquired or achieved

Select an item on the left, then tap its match on the right.

'Learn the ropes' means to learn the basics of something. 'Hit the books' means to study hard. 'Read between the lines' means to understand the hidden or implicit meaning. 'Under one's belt' means something acquired or achieved.
Q5

Question 5: Complete the idiom: 'Two ___ are better than one.'

Question 5 options
The correct idiom is 'Two heads are better than one,' meaning that collaborating with someone else is often more effective than working alone.

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