At the A1 level, the word '이론서' (iron-seo) might be a bit challenging because it is an academic term. However, you can think of it simply as a 'difficult school book' or a 'book about rules.' You know the word '책' (chaek) for book. '이론서' is just a special type of book. In Korea, students study very hard, so they use many different books. You might see this word in a library or a bookstore. At this stage, you don't need to use it in complex sentences. Just remember that '이론' means 'theory' and '서' means 'book.' If you see a book with a lot of text and no pictures, and it's about science or math, it might be an '이론서.' You can say '이 책은 이론서예요' (This book is a theory book). It's a good word to recognize when you are looking at different types of books in Korean.
At the A2 level, you are starting to describe things in more detail. '이론서' is a useful word when talking about your studies or hobbies. For example, if you are learning Korean, you might have a '문법 이론서' (grammar theory book). This is different from a '워크북' (workbook) where you do exercises. You can use '이론서' with basic verbs like '읽다' (to read) or '사다' (to buy). You might say, '저는 어제 음악 이론서를 샀어요' (I bought a music theory book yesterday). This shows you understand the purpose of the book is for learning the principles of music, not just playing it. You can also use adjectives like '어렵다' (difficult) or '좋다' (good) to describe it. Understanding '이론서' helps you distinguish between different types of educational materials, which is important for navigating Korean schools or bookstores.
At the B1 level, you can use '이론서' to discuss your academic interests or professional background. You should be able to explain the difference between a theory book and a practical guide. For instance, you could say, '이 책은 실무보다는 이론에 집중한 이론서입니다' (This book is a theory book focused on theory rather than practice). This level involves more complex sentence structures using particles like '~보다' (than) or '~에 관한' (about). You might also encounter this word in news articles about education or in book recommendations. You should start to recognize that '이론서' is a formal term. If you are talking to a teacher or a senior at work, using '이론서' instead of just '책' makes you sound more professional and precise. You can also use it to ask for specific help, like '기초 이론서를 추천해 주시겠어요?' (Could you recommend a basic theory book?).
At the B2 level, '이론서' becomes a common part of your vocabulary for discussing abstract concepts and academic research. You can use it to talk about the quality and depth of information. For example, '이 이론서는 체계적으로 잘 정리되어 있어서 이해하기 쉽습니다' (This theory book is well-organized systematically, so it is easy to understand). You can also discuss the history or the reputation of certain books: '그의 이론서는 수십 년 동안 해당 분야의 고전으로 여겨져 왔다' (His theory book has been considered a classic in that field for decades). At this stage, you should be comfortable using the word in both spoken and written forms, including academic reports or formal debates. You can also handle related terms like '원론' (principles) or '학술서' (academic book) and understand the subtle differences in their usage depending on the context.
At the C1 level, you use '이론서' with a high degree of nuance and precision. You can critique the theoretical framework presented in an '이론서' or compare multiple '이론서' to discuss different schools of thought. For example, '이 이론서는 현대 언어학의 한계를 지적하며 새로운 패러다임을 제시하고 있다' (This theory book points out the limitations of modern linguistics and suggests a new paradigm). You are likely to encounter this word in academic journals, high-level lectures, and sophisticated literary reviews. You understand that the word carries a connotation of authority and intellectual rigor. You can also use it in creative ways, such as discussing the '이론서' of a certain lifestyle or philosophy. Your ability to use '이론서' in complex, multi-clause sentences demonstrates a deep grasp of Korean academic register and formal discourse.
At the C2 level, you have complete mastery over the word '이론서' and its various academic and professional contexts. You can engage in deep philosophical or scientific discussions where the '이론서' is the primary object of analysis. You can discuss the evolution of '이론서' within a specific field, the challenges of translating such dense texts, or the sociopolitical impact of a particular '이론서.' For instance, '칸트의 이론서들은 서구 철학의 흐름을 근본적으로 바꾸어 놓았다' (Kant's theory books fundamentally changed the flow of Western philosophy). You can use the word fluently in any setting, from a high-level academic conference to a formal television debate. You also understand the cultural nuances of how '이론서' are valued in Korean society, particularly in the context of the 'scholar-official' tradition, and can incorporate this understanding into your communication.

이론서 in 30 Sekunden

  • 이론서 refers to a book focused on the conceptual and logical foundations of a subject.
  • It is commonly used in academic and professional contexts to distinguish from practical guides.
  • The term is a compound of '이론' (theory) and '서' (book/document).
  • It is essential for building a deep, systemic understanding of any field of study.

The Korean word 이론서 (iron-seo) is a compound noun derived from two distinct concepts: 이론 (iron), meaning 'theory' or 'theoretical framework,' and (seo), which acts as a suffix or root meaning 'book' or 'document.' Together, it refers specifically to a book that focuses on the conceptual, abstract, or foundational principles of a subject rather than its practical applications or exercises. When you walk into a large Korean bookstore like Kyobo Book Centre, you will see sections divided into practical guides (실기서) and theory books (이론서). This distinction is crucial in the Korean educational context where a deep understanding of the 'why' and 'how' behind a subject is often prioritized before engaging in 'how-to' activities.

Etymological Breakdown
The term is rooted in Hanja (Chinese characters). 理 (i) represents reason or logic, 論 (ron) represents discussion or discourse, and 書 (seo) represents writing or a book. Thus, it is literally a book for the discussion of logic.
Academic Context
In universities, professors often distinguish between a textbook (교과서) and a specialized theory book (전문 이론서). While a textbook might provide a broad overview, an 이론서 dives deep into specific academic paradigms.

이 과목을 제대로 이해하려면 기초 이론서를 먼저 읽어야 합니다. (To understand this subject properly, you must first read the basic theory book.)

People use this word most frequently in academic, professional, or self-improvement settings. If you are studying music, an 이론서 would explain harmony and counterpoint, whereas a 실기서 would show you how to place your fingers on the piano. In the world of computer science, an 이론서 might cover the mathematics of algorithms, while a coding manual would show you syntax. The word carries a certain weight of authority; calling something an '이론서' implies it is a serious, foundational text that requires concentration and intellectual effort to digest. It is not something you typically read for light entertainment, but rather for the purpose of gaining a systemic understanding of a field.

그는 경제학의 복잡한 원리를 설명하는 이론서를 집필하고 있다. (He is writing a theory book that explains the complex principles of economics.)

Usage in Professional Fields
Lawyers, doctors, and engineers frequently refer to 이론서 to find the underlying justifications for certain practices or to research legal precedents and scientific laws.

Furthermore, the term is often paired with adjectives like '기초' (basic), '전문' (specialized), or '최신' (latest). A '기초 이론서' provides the essential building blocks, while a '최신 이론서' would incorporate the most recent academic developments and research findings. In Korean culture, there is a strong emphasis on '기본기' (basic skills/foundations), and reading a thorough 이론서 is seen as the primary way to build those foundations. It represents the transition from a casual interest to a serious academic or professional pursuit.

이 책은 단순한 안내서가 아니라 깊이 있는 이론서입니다. (This book is not a simple guide, but an in-depth theory book.)

Using 이론서 correctly involves understanding its role as a formal noun. It is most commonly the object of verbs like 읽다 (to read), 보다 (to see/read), 공부하다 (to study), or 집필하다 (to write/author). Because it is a formal term, it appears frequently in written Korean, academic lectures, and professional discussions. In casual conversation, you might simply say '책' (book), but using '이론서' specifies that the content is academic or theoretical in nature.

Common Verb Pairings
이론서를 참고하다 (to refer to a theory book), 이론서를 독파하다 (to read a theory book from cover to cover with great effort), 이론서를 출판하다 (to publish a theory book).

시험 준비를 위해 전공 이론서를 다시 읽고 있어요. (I am re-reading my major's theory book to prepare for the exam.)

When describing the quality of an 이론서, Koreans often use adjectives like 방대하다 (vast/extensive), 난해하다 (difficult/abstruse), or 체계적이다 (systematic). A 'systematic theory book' (체계적인 이론서) is highly valued because it organizes complex information logically. Conversely, if a book is '난해한 이론서,' it means the language is very academic and hard for a layperson to understand. You can also use the particle ~에 관한 (about/regarding) to specify the subject of the book.

그는 양자역학에 관한 이론서를 세 권이나 샀다. (He bought as many as three theory books regarding quantum mechanics.)

In a sentence, '이론서' can also act as the subject. For example, '이 이론서는 내용이 아주 알차다' (This theory book has very substantial content). Here, '알차다' suggests the book is packed with useful information. You might also hear it in the passive voice in academic writing: '이 이론서는 1990년대에 널리 읽혔다' (This theory book was widely read in the 1990s). The word is versatile enough to be used when discussing the history of ideas or the curriculum of a specific course.

어떤 이론서가 가장 유명한가요? (Which theory book is the most famous?)

Sentence Structure with '이론서'
[Subject] + [Subject Particle] + [Field] + '이론서' + [Object Particle] + [Verb]. Example: 학생들이 사회학 이론서를 공부한다. (The students study the sociology theory book.)

Finally, consider the nuances of '이론서' compared to '개론서' (an introductory book that covers the general outline). An 이론서 is usually more focused on the internal logic and arguments of a theory, whereas a 개론서 provides a bird's eye view of a whole field. Understanding this distinction helps you choose the right word when asking for recommendations in a library or bookstore.

You are most likely to encounter the word 이론서 in environments where formal education and expertise are valued. If you are a student at a Korean university, your syllabus (강의계획서) will frequently list various '이론서' as required or recommended reading. Professors will mention them during lectures to point students toward deeper explanations of the day's topics. For instance, a professor might say, '이 부분은 이론서를 참고해서 더 깊이 공부하세요' (Study this part more deeply by referring to the theory book).

In the News and Media
Book reviews in newspapers (like the Chosun Ilbo or JoongAng Ilbo) often use this term when a new academic work is published. A reviewer might describe a book as a '필독 이론서' (a must-read theory book) for anyone interested in modern philosophy.

도서관에서 전공 이론서를 빌렸어요. (I borrowed a major-related theory book from the library.)

Another common place to hear this word is in 'Hagwons' (private academies), especially those focused on professional certifications or the civil service exam (공무원 시험). In these highly competitive environments, students are often looking for the best '이론서' that explains the concepts clearly so they can solve related problems in their workbooks (문제집). In this context, the '이론서' is the 'bible' of the subject, containing all the essential knowledge that might appear on the test.

이론서는 설명이 너무 복잡해요. (The explanations in this theory book are too complicated.)

In professional workplaces, especially in R&D (Research and Development) or legal departments, colleagues might discuss an '이론서' when trying to solve a complex problem that requires going back to the fundamentals. '우리가 놓치고 있는 게 있을지 모르니 관련 이론서를 다시 확인해 봅시다' (We might be missing something, so let's check the relevant theory book again). It signals a desire for a thorough, principled approach rather than a quick fix.

Online Communities
On platforms like Naver Cafe or DC Inside, users in study groups often ask each other, '독학하기 좋은 이론서 추천해 주세요' (Please recommend a good theory book for self-study).

Lastly, in the context of hobbyists, such as those learning a musical instrument or a craft, '이론서' refers to the books that explain the 'logic' of the hobby. A jazz guitarist might own several '화성학 이론서' (harmony theory books) to understand how to improvise. Even in these non-academic settings, the word '이론서' maintains its sophisticated and educational nuance, distinguishing it from a simple 'how-to' pamphlet.

One of the most common mistakes learners make is confusing 이론서 with 교과서 (textbook). While a textbook is a type of book used for instruction, an '이론서' is specifically defined by its content—theory. A textbook often contains exercises, summaries, and pedagogical tools, whereas an 이론서 might be a dense academic text written by a researcher for other researchers. If you are talking about the book you use in a middle school math class, '교과서' is much more appropriate than '이론서.'

Confusion with 'Manual'
Another frequent error is using '이론서' when you mean '매뉴얼' (manual) or '설명서' (instruction manual). A manual tells you how to operate a machine or software. An 이론서 tells you the principles of how that machine or software works. For example, don't call a microwave's operating guide an '이론서.'

이 카메라 이론서가 어디 있죠? (Where is this camera theory book? - Incorrect if you want the manual.)
이 카메라 설명서가 어디 있죠? (Where is this camera manual?)

Another nuance involves the difference between 이론서 and 개론서 (introductory book). Learners often use '이론서' as a catch-all for any academic book. However, if a book is meant to introduce a beginner to a whole field (like 'Introduction to Psychology'), it is better called a '개론서.' Using '이론서' suggests a more focused study on specific theories. If you ask for an '이론서' but you are a beginner, the librarian might give you something far too difficult.

Pronunciation can also be a minor hurdle. The word is pronounced [이론서]. Some beginners might accidentally emphasize the '론' too much or mispronounce '서' as '소.' Keeping the vowels clear and the syllables even is key. Also, remember that '이론' is a noun and '서' is a suffix-like noun here. Don't try to use '이론서' as a verb; you cannot '이론서하다.' You must say '이론서를 읽다' or '이론서로 공부하다.'

그 책은 이론서라기보다는 실기서에 가깝다. (That book is closer to a practical guide than a theory book.)

Register Errors
Using '이론서' in a very casual setting (like talking about a comic book) might sound overly formal or even sarcastic. Use it only when the book actually contains academic or professional theory.

Finally, be careful with the word 원론 (principles). While '경제학 원론' (Principles of Economics) is a common book title, '원론' refers to the principles themselves, while '이론서' refers to the physical or digital book containing them. You study '원론' using an '이론서.'

In Korean, there are several words related to academic books, and choosing the right one depends on the depth and scope of the content. 이론서 is the general term for a book about theory, but you might also encounter 학술서, 전문서, or 개론서. Understanding these synonyms will help you navigate Korean academic and professional literature more effectively.

이론서 vs. 학술서 (Academic Book)
이론서 focuses on the 'theory' part of a subject. 학술서 is a broader term for any book used in academia, including research findings, case studies, and historical analyses. An 이론서 is often a type of 학술서.
이론서 vs. 개론서 (Introductory Book)
As mentioned before, 개론서 (Introduction/Outline) is for beginners. It provides a wide but shallow overview. 이론서 is usually deeper and focuses on specific frameworks.

이 책은 기초 개론서를 읽은 후에 보는 것이 좋습니다. (It is good to look at this book after reading a basic introductory book.)

Another interesting alternative is 기본서 (basic/foundational book). In the context of exams (like the SAT or professional licenses), students rarely say '이론서.' Instead, they call their main textbook the '기본서.' It implies that the book contains the 'standard' or 'essential' theory needed to pass. If you are in a study group for the Korean bar exam, you will hear '기본서' much more often than '이론서.'

그는 전문서보다는 일반인도 읽기 쉬운 입문서를 선호한다. (He prefers introductory books that are easy for the general public to read rather than specialized books.)

For practical fields, the antonym is 실기서 (practical guide) or 실용서 (practical/useful book). While an 이론서 for photography explains the physics of light and optics, a 실기서 would give you tips on how to frame a portrait. If you want to learn how to do something, look for a 실용서; if you want to understand why it works that way, look for an 이론서. In Korean bookstores, '실용' (practical) and '이론' (theory) are often separate shelves.

Summary of Alternatives
- 입문서: For absolute beginners.
- 개론서: General overview of a field.
- 전문서: Highly specialized book for experts.
- 기본서: The essential textbook for an exam.
- 참고서: Reference book/study guide.

Choosing '이론서' specifically emphasizes the abstract and logical nature of the content. It's a word that commands respect for the reader's intellectual commitment. Whether you are discussing the '이론서' of a famous philosopher or a '최신 이론서' in technology, using this word correctly shows a high level of Korean proficiency and an understanding of academic structure.

How Formal Is It?

Wusstest du?

The character '書' (seo) is the same one used in 'Seoye' (Korean calligraphy), emphasizing the historical importance of writing and books in Korean culture.

Aussprachehilfe

UK /i.ɾon.sʌ/
US /i.ɾon.sʌ/
In Korean, there is no strong word-level stress like in English, but the syllables are typically pronounced with equal length and pitch.
Reimt sich auf
기본서 (gi-bon-seo) 입문서 (im-mun-seo) 개론서 (gae-ron-seo) 전문서 (jeon-mun-seo) 참고서 (cham-go-seo) 안내서 (an-nae-seo) 설명서 (seol-myeong-seo) 보고서 (bo-go-seo)
Häufige Fehler
  • Pronouncing 'ron' like the English name 'Ron' (the vowel is different).
  • Using an English 'r' instead of a Korean flap 'r'.
  • Pronouncing 'seo' as 'so' (the 'eo' sound is distinct).
  • Adding an extra 'y' sound between 'i' and 'ron'.
  • Making the 's' in 'seo' too sharp like 'sh'.

Schwierigkeitsgrad

Lesen 3/5

Recognizing the word is easy, but the content of an '이론서' itself is usually very difficult.

Schreiben 4/5

Requires knowledge of formal academic particles and verbs.

Sprechen 2/5

Pronunciation is straightforward once you master the 'eo' sound.

Hören 3/5

Common in lectures and news, so it's important to recognize it in formal speech.

Was du als Nächstes lernen solltest

Voraussetzungen

책 (Book) 공부 (Study) 어렵다 (Difficult) 읽다 (Read) 이해 (Understanding)

Als Nächstes lernen

학술지 (Academic journal) 논문 (Thesis) 가설 (Hypothesis) 검증 (Verification) 실무 (Practical business/work)

Fortgeschritten

형이상학 (Metaphysics) 방법론 (Methodology) 패러다임 (Paradigm) 인식론 (Epistemology)

Wichtige Grammatik

Noun + 에 관한 (About/Regarding)

경제학에 관한 이론서를 읽고 있어요.

Noun + 을/를 통해 (Through/Via)

이론서를 통해 새로운 지식을 얻었다.

Verb + 기 쉽지 않다 (Not easy to...)

이 이론서는 이해하기 쉽지 않다.

Noun + 위주의 (Centering on...)

이론서 위주의 교육 방식은 한계가 있다.

Noun + 에 따르면 (According to...)

이 이론서에 따르면 인플레이션은 피할 수 없다.

Beispiele nach Niveau

1

이것은 과학 이론서입니다.

This is a science theory book.

이것 (this) + 은 (topic particle) + 과학 (science) + 이론서 (theory book) + 입니다 (is).

2

이론서가 책상 위에 있어요.

The theory book is on the desk.

이론서 (theory book) + 가 (subject particle) + 책상 위 (on the desk) + 에 (location particle) + 있어요 (is/exists).

3

저는 이론서를 읽어요.

I read a theory book.

저 (I) + 는 (topic particle) + 이론서 (theory book) + 를 (object particle) + 읽어요 (read).

4

이론서가 아주 두꺼워요.

The theory book is very thick.

이론서 (theory book) + 가 (subject particle) + 아주 (very) + 두꺼워요 (is thick).

5

도서관에 이론서가 많아요.

There are many theory books in the library.

도서관 (library) + 에 (location particle) + 이론서 (theory book) + 가 (subject particle) + 많아요 (are many).

6

이론서를 사러 서점에 가요.

I go to the bookstore to buy a theory book.

이론서 (theory book) + 를 (object particle) + 사러 (to buy) + 서점 (bookstore) + 에 (direction particle) + 가요 (go).

7

선생님이 이론서를 주셨어요.

The teacher gave me a theory book.

선생님 (teacher) + 이 (subject particle) + 이론서 (theory book) + 를 (object particle) + 주셨어요 (gave - honorific).

8

이론서가 재미있어요?

Is the theory book interesting?

이론서 (theory book) + 가 (subject particle) + 재미있어요 (is interesting) + ?

1

이 음악 이론서는 조금 어려워요.

This music theory book is a bit difficult.

이 (this) + 음악 (music) + 이론서 (theory book) + 는 (topic particle) + 조금 (a bit) + 어려워요 (is difficult).

2

어떤 이론서를 가장 좋아해요?

Which theory book do you like the most?

어떤 (which) + 이론서 (theory book) + 를 (object particle) + 가장 (most) + 좋아해요 (like).

3

저는 매일 이론서를 한 시간씩 읽어요.

I read a theory book for an hour every day.

저 (I) + 는 (topic particle) + 매일 (every day) + 이론서 (theory book) + 를 (object particle) + 한 시간씩 (for an hour each) + 읽어요 (read).

4

이 이론서에는 그림이 없어요.

There are no pictures in this theory book.

이 (this) + 이론서 (theory book) + 에 (in) + 는 (topic particle) + 그림 (picture) + 이 (subject particle) + 없어요 (is not/does not exist).

5

친구와 같이 이론서를 공부했어요.

I studied a theory book with a friend.

친구 (friend) + 와 (with) + 같이 (together) + 이론서 (theory book) + 를 (object particle) + 공부했어요 (studied).

6

이 이론서를 다 읽고 싶어요.

I want to finish reading this theory book.

이 (this) + 이론서 (theory book) + 를 (object particle) + 다 (all) + 읽고 싶어요 (want to read).

7

새로운 이론서가 서점에 나왔어요.

A new theory book has come out in the bookstore.

새로운 (new) + 이론서 (theory book) + 가 (subject particle) + 서점 (bookstore) + 에 (at) + 나왔어요 (came out).

8

이론서를 빌리러 도서관에 갈까요?

Shall we go to the library to borrow a theory book?

이론서 (theory book) + 를 (object particle) + 빌리러 (to borrow) + 도서관 (library) + 에 (to) + 갈까요 (shall we go)?

1

이 책은 전공자들을 위한 전문 이론서입니다.

This book is a specialized theory book for majors.

전공자 (major) + 들 (plural) + 을 위한 (for) + 전문 (specialized) + 이론서 (theory book).

2

이론서를 읽는 것은 기초를 다지는 데 중요합니다.

Reading theory books is important for building foundations.

읽는 것 (reading) + 은 (topic particle) + 기초 (foundation) + 를 (object particle) + 다지는 데 (in building) + 중요합니다 (is important).

3

그 교수는 경제학 이론서를 여러 권 썼습니다.

That professor has written several theory books on economics.

그 (that) + 교수 (professor) + 는 (topic particle) + 경제학 (economics) + 이론서 (theory book) + 를 (object particle) + 여러 권 (several volumes) + 썼습니다 (wrote).

4

이론서의 내용을 이해하기가 쉽지 않아요.

It is not easy to understand the content of the theory book.

이론서 (theory book) + 의 (possessive) + 내용 (content) + 을 (object particle) + 이해하기 (understanding) + 가 (subject particle) + 쉽지 않아요 (is not easy).

5

시험에 합격하려면 이론서를 꼼꼼히 봐야 합니다.

To pass the exam, you must look at the theory book meticulously.

시험에 (in the exam) + 합격하려면 (to pass) + 이론서 (theory book) + 를 (object particle) + 꼼꼼히 (meticulously) + 봐야 합니다 (must see/read).

6

이 이론서는 최신 연구 결과를 포함하고 있습니다.

This theory book includes the latest research results.

이 (this) + 이론서 (theory book) + 는 (topic particle) + 최신 (latest) + 연구 결과 (research results) + 를 (object particle) + 포함하고 있습니다 (is including).

7

어려운 이론서 대신 쉬운 입문서를 먼저 읽으세요.

Read an easy introductory book first instead of a difficult theory book.

어려운 (difficult) + 이론서 (theory book) + 대신 (instead of) + 쉬운 (easy) + 입문서 (introductory book).

8

이론서만 읽지 말고 실습도 병행해야 합니다.

Don't just read theory books; you must also do practice in parallel.

이론서 (theory book) + 만 (only) + 읽지 말고 (don't read and) + 실습 (practice) + 도 (also) + 병행해야 합니다 (must do in parallel).

1

이 이론서는 현대 심리학의 기초를 체계적으로 설명합니다.

This theory book systematically explains the foundations of modern psychology.

현대 (modern) + 심리학 (psychology) + 의 (of) + 기초 (foundation) + 를 (object particle) + 체계적으로 (systematically) + 설명합니다 (explains).

2

그 이론서는 내용이 방대하여 독파하는 데 시간이 오래 걸립니다.

The theory book has vast content, so it takes a long time to read through.

방대하여 (being vast) + 독파하는 데 (in reading through) + 시간이 (time) + 오래 (long) + 걸립니다 (takes).

3

많은 학자들이 이 이론서를 필독서로 추천합니다.

Many scholars recommend this theory book as a must-read.

많은 (many) + 학자 (scholar) + 들 (plural) + 이 (subject particle) + 필독서 (must-read book) + 로 (as) + 추천합니다 (recommend).

4

이론서에 나온 공식들을 외우는 것이 힘들어요.

It is hard to memorize the formulas that appeared in the theory book.

나온 (that came out) + 공식 (formula) + 들 (plural) + 을 (object particle) + 외우는 것 (memorizing) + 이 (subject particle) + 힘들어요 (is hard).

5

그의 주장은 이 이론서의 논리와 정면으로 배치됩니다.

His argument directly contradicts the logic of this theory book.

그의 (his) + 주장 (argument) + 은 (topic particle) + 논리 (logic) + 와 (with) + 정면으로 (directly) + 배치됩니다 (contradicts).

6

이론서를 참고하여 보고서를 작성해 주세요.

Please write the report by referring to the theory book.

참고하여 (referring to) + 보고서 (report) + 를 (object particle) + 작성해 주세요 (please write).

7

이 이론서는 번역이 매끄럽지 않아 읽기 불편합니다.

This theory book is uncomfortable to read because the translation is not smooth.

번역 (translation) + 이 (subject particle) + 매끄럽지 않아 (not being smooth) + 읽기 (reading) + 불편합니다 (is uncomfortable).

8

최신 이론서를 통해 새로운 기술의 원리를 배웠습니다.

I learned the principles of new technology through the latest theory book.

통해 (through) + 새로운 (new) + 기술 (technology) + 의 (of) + 원리 (principle) + 를 (object particle) + 배웠습니다 (learned).

1

이 이론서는 포스트모더니즘 담론을 심도 있게 다루고 있다.

This theory book deals with postmodernism discourse in depth.

포스트모더니즘 (postmodernism) + 담론 (discourse) + 을 (object particle) + 심도 있게 (in depth) + 다루고 있다 (is dealing with).

2

해당 이론서는 학계에서 상당한 논란을 불러일으켰다.

The theory book in question caused significant controversy in academic circles.

해당 (relevant/in question) + 학계 (academic circles) + 에서 (in) + 상당한 (significant) + 논란 (controversy) + 을 (object particle) + 불러일으켰다 (caused/triggered).

3

이론서의 서문에서 저자는 집필 의도를 명확히 밝히고 있다.

In the preface of the theory book, the author clearly states the intention of writing.

서문 (preface) + 에서 (in) + 저자 (author) + 는 (topic particle) + 집필 의도 (writing intention) + 를 (object particle) + 명확히 (clearly) + 밝히고 있다 (is stating/revealing).

4

비판적 시각으로 이론서를 읽는 태도가 필요하다.

An attitude of reading theory books with a critical perspective is necessary.

비판적 (critical) + 시각 (perspective) + 으로 (with) + 읽는 (reading) + 태도 (attitude) + 가 (subject particle) + 필요하다 (is necessary).

5

이 이론서는 복잡한 사회 현상을 명쾌한 이론으로 풀어냈다.

This theory book resolved complex social phenomena with clear theory.

복잡한 (complex) + 사회 현상 (social phenomena) + 을 (object particle) + 명쾌한 (clear/lucid) + 이론 (theory) + 으로 (with) + 풀어냈다 (unraveled/solved).

6

고전적인 이론서들을 다시 읽으며 학문적 토대를 다졌다.

I strengthened my academic foundation by re-reading classic theory books.

고전적인 (classic) + 들 (plural) + 을 (object particle) + 다시 (again) + 읽으며 (while reading) + 학문적 (academic) + 토대 (foundation) + 를 (object particle) + 다졌다 (strengthened).

7

이 이론서는 특정 학파의 편향된 시각을 담고 있다는 비판을 받는다.

This theory book is criticized for containing the biased perspective of a specific school of thought.

특정 (specific) + 학파 (school of thought) + 의 (of) + 편향된 (biased) + 시각 (perspective) + 을 (object particle) + 담고 있다 (is containing) + 는 (modifier) + 비판 (criticism) + 을 받는다 (receives).

8

저명한 학자가 쓴 이 이론서는 해당 분야의 이정표가 되었다.

This theory book, written by a prominent scholar, became a milestone in the field.

저명한 (prominent) + 학자 (scholar) + 가 (subject particle) + 쓴 (written) + 이 (this) + 이론서 (theory book) + 는 (topic particle) + 이정표 (milestone) + 가 되었다 (became).

1

이 이론서는 형이상학적 난제들을 치밀한 논증으로 분석하고 있다.

This theory book analyzes metaphysical dilemmas with meticulous argumentation.

형이상학적 (metaphysical) + 난제 (dilemma) + 들 (plural) + 을 (object particle) + 치밀한 (meticulous) + 논증 (argumentation) + 으로 (with) + 분석하고 있다 (is analyzing).

2

방대한 문헌 조사를 바탕으로 저술된 이 이론서는 독보적인 가치를 지닌다.

This theory book, written based on extensive literature review, possesses unrivaled value.

방대한 (vast) + 문헌 조사 (literature review) + 를 (object particle) + 바탕으로 (based on) + 저술된 (authored) + 독보적인 (unrivaled) + 가치 (value) + 를 (object particle) + 지닌다 (possesses).

3

이론서의 핵심 가설이 실험 결과와 상충하면서 학계에 파장이 일었다.

As the core hypothesis of the theory book conflicted with experimental results, ripples were sent through the academic world.

핵심 (core) + 가설 (hypothesis) + 이 (subject particle) + 실험 결과 (experimental results) + 와 (with) + 상충하면서 (conflicting) + 파장 (ripples/waves) + 이 일었다 (rose/occurred).

4

그의 이론서는 단순한 지식 전달을 넘어 인식의 지평을 넓혀 주었다.

His theory book went beyond simple knowledge transfer and broadened the horizon of perception.

단순한 (simple) + 지식 전달 (knowledge transfer) + 을 (object particle) + 넘어 (beyond) + 인식 (perception) + 의 (of) + 지평 (horizon) + 을 (object particle) + 넓혀 주었다 (widened).

5

이 이론서는 다학제적 접근을 통해 기존 이론의 한계를 극복하려 시도한다.

This theory book attempts to overcome the limitations of existing theories through a multidisciplinary approach.

다학제적 (multidisciplinary) + 접근 (approach) + 을 (object particle) + 통해 (through) + 기존 (existing) + 이론 (theory) + 의 (of) + 한계 (limitation) + 를 (object particle) + 극복하려 (to overcome) + 시도한다 (attempts).

6

이론서에 기술된 추상적 개념들을 구체적인 사례로 환원하는 작업이 필요하다.

Work is needed to reduce the abstract concepts described in the theory book into concrete examples.

기술된 (described) + 추상적 (abstract) + 개념 (concept) + 들 (plural) + 을 (object particle) + 구체적인 (concrete) + 사례 (example) + 로 (to) + 환원하는 (reducing/converting) + 작업 (work) + 이 (subject particle) + 필요하다 (is necessary).

7

이 이론서는 시대적 한계에도 불구하고 여전히 유효한 통찰을 제공한다.

Despite its historical limitations, this theory book still provides valid insights.

시대적 (historical/epochal) + 한계 (limitation) + 에도 불구하고 (despite) + 여전히 (still) + 유효한 (valid) + 통찰 (insight) + 을 (object particle) + 제공한다 (provides).

8

고도의 지적 훈련을 쌓은 이들만이 이 이론서의 진의를 파악할 수 있다.

Only those who have accumulated a high level of intellectual training can grasp the true meaning of this theory book.

고도 (high level) + 의 (of) + 지적 (intellectual) + 훈련 (training) + 을 (object particle) + 쌓은 (accumulated) + 이들 (people) + 만 (only) + 이 (subject particle) + 진의 (true meaning) + 를 (object particle) + 파악할 수 있다 (can grasp/comprehend).

Häufige Kollokationen

이론서를 집필하다
이론서를 참고하다
기초 이론서
이론서를 독파하다
전문 이론서
이론서의 내용
이론서를 출판하다
이론서를 번역하다
표준 이론서
이론서 중심의 공부

Häufige Phrasen

이론서에 충실하다

— To be faithful to the content of the theory book. Often used to describe someone who follows principles strictly.

그의 강의는 이론서에 매우 충실하다.

이론서와 실제

— Theory book vs. reality. Used when discussing the gap between concepts and practice.

이론서와 실제 현장은 다를 때가 많다.

이론서를 뒤적이다

— To leaf through a theory book. Suggests searching for something or reading casually.

그는 답을 찾기 위해 이론서를 뒤적였다.

이론서에 나오다

— To appear in a theory book. Used to verify facts.

그 내용은 어떤 이론서에도 나오지 않는다.

이론서를 덮다

— To close the theory book. Often implies finishing a study session.

그는 한숨을 쉬며 이론서를 덮었다.

이론서가 닳다

— The theory book is worn out. Implies that someone has studied it very intensely.

그의 이론서는 손때가 묻어 닳아 있었다.

이론서를 파고들다

— To delve deep into a theory book. Suggests intense, focused study.

그는 방학 내내 철학 이론서를 파고들었다.

이론서를 요약하다

— To summarize a theory book. A common study technique in Korea.

시험 전까지 이론서를 요약해서 정리했다.

이론서를 선정하다

— To select a theory book. Used by teachers or study groups.

이번 학기 교재로 이 이론서를 선정했다.

이론서의 한계

— The limitations of a theory book. Used in critical discussions.

이 이론서의 한계는 사례가 부족하다는 점이다.

Wird oft verwechselt mit

이론서 vs 교과서

Textbook for school classes; 이론서 is specifically about theory.

이론서 vs 설명서

Instruction manual; 이론서 explains principles, not just how-to.

이론서 vs 문제집

Workbook with exercises; 이론서 contains the explanations.

Redewendungen & Ausdrücke

"책상물림"

— A person who only knows what's in theory books and has no practical experience.

그는 이론서만 아는 책상물림이라 현장일을 전혀 모른다.

Informal/Derogatory
"탁상공론"

— Empty talk at a desk; a discussion based only on theory with no practical use.

이론서만 가지고 하는 이야기는 탁상공론에 불과하다.

Formal
"글로 배우다"

— To learn something only through books (theory) rather than experience. Often used humorously.

연애를 이론서로만 배워서 실제로는 서툴러요.

Informal
"이론에 밝다"

— To be well-versed in theory.

그는 이론서들을 많이 읽어서 관련 이론에 매우 밝다.

Neutral
"공자 왈 맹자 왈"

— Reciting old theories (Confucius/Mencius) without understanding or relevance to today.

이론서에 나오는 공자 왈 맹자 왈 같은 소리는 그만두게.

Informal
"뼈대를 세우다"

— To build a skeleton/framework. Often used when an 이론서 provides the framework for a study.

이 이론서는 내 연구의 뼈대를 세워 주었다.

Neutral
"눈이 높다"

— To have high standards. Can be used when someone only reads very advanced theory books.

이론서만 많이 읽더니 눈만 높아져서 웬만한 책은 보지도 않는다.

Informal
"밑바닥부터 훑다"

— To scour from the bottom. Used when studying an 이론서 from the very beginning.

기초 이론서부터 밑바닥부터 훑으며 공부했다.

Informal
"머리에 박히다"

— To be stuck in one's head. Used when a theory from a book is finally understood.

이론서의 내용이 드디어 머리에 박히기 시작했다.

Informal
"앵무새처럼 읊다"

— To recite like a parrot. Used when someone repeats theory book content without understanding.

그는 이론서의 내용을 앵무새처럼 읊기만 한다.

Informal

Leicht verwechselbar

이론서 vs 개론서

Both are academic books.

개론서 is a broad introduction; 이론서 is a deep dive into specific theories.

심리학 개론서는 쉽지만, 심리학 이론서는 아주 어렵다.

이론서 vs 원론

Both refer to foundations.

원론 is the set of principles; 이론서 is the book containing them.

경제학 원론을 배우기 위해 이론서를 폈다.

이론서 vs 학술서

Both are formal books.

학술서 is a broader category for all scholarly books.

모든 이론서는 학술서에 포함된다.

이론서 vs 실기서

They are opposites used in the same context.

실기서 is for practice; 이론서 is for theory.

피아노를 칠 때는 실기서가 필요하고, 화성학을 배울 때는 이론서가 필요하다.

이론서 vs 참고서

Both are study materials.

참고서 is usually a supplementary study guide for students.

시험 기간에는 이론서보다 참고서를 더 많이 본다.

Satzmuster

A2

저는 [Subject] 이론서를 읽어요.

저는 음악 이론서를 읽어요.

A2

이 이론서는 [Adjective]요.

이 이론서는 어려워요.

B1

[Subject]에 관한 이론서를 샀어요.

심리학에 관한 이론서를 샀어요.

B1

이론서를 [Adverb] 공부해야 해요.

이론서를 꼼꼼히 공부해야 해요.

B2

이 이론서는 [Content]를 다루고 있다.

이 이론서는 현대 미술을 다루고 있다.

B2

이론서를 참고하여 [Task]를 했다.

이론서를 참고하여 과제를 했다.

C1

해당 이론서는 [Result]를 불러일으켰다.

해당 이론서는 학계에 큰 파장을 불러일으켰다.

C2

이 이론서의 진의는 [Concept]에 있다.

이 이론서의 진의는 인간 존엄성에 있다.

Wortfamilie

Substantive

이론 (Theory)
이론가 (Theorist)
이론화 (Theorization)

Verben

이론화하다 (To theorize)

Adjektive

이론적이다 (To be theoretical)

Verwandt

논문 (Thesis/Paper)
학설 (Doctrine/Theory)
원리 (Principle)
개념 (Concept)
가설 (Hypothesis)

So verwendest du es

frequency

High in academic and professional settings; low in daily casual life.

Häufige Fehler
  • Using '이론서' for a manual. 설명서 or 매뉴얼

    An 이론서 explains 'why' something works; a manual explains 'how' to use it. Don't call a phone guide an 이론서.

  • Confusing '이론서' with '교과서'. 교과서 (for school subjects)

    While they overlap, 교과서 is a formal textbook for a specific curriculum. 이론서 is a broader term for any book on theory.

  • Thinking '이론서' is a verb. 이론서를 읽다 / 공부하다

    You cannot say '이론서하다'. It is a noun and needs a verb like 'to read' or 'to study'.

  • Mispronouncing '서' as '소'. 서 (seo)

    The 'eo' sound in Korean is like the 'u' in 'up'. 'So' is a different sound and word.

  • Using '이론서' for an essay book. 수필집 or 에세이

    Essays are personal and subjective; 이론서 are objective and academic. They are very different genres.

Tipps

Don't skip the preface

The preface of an 이론서 often explains the author's theoretical stance, which is crucial for understanding the rest of the book. It sets the context for all the complex arguments that follow.

Learn Hanja roots

Knowing that '서' (書) means book helps you recognize other words like '도서관' (library) and '서점' (bookstore). It's a powerful way to expand your Korean vocabulary quickly.

Use a highlighter wisely

When reading a dense 이론서, highlight only the core definitions and the logical links between ideas. If you highlight everything, the book becomes harder to review later.

Check the edition

In fields like technology or medicine, always look for the '최신 이론서' (latest theory book). Old theories can be outdated, so the publication date is very important.

Sound academic

Using the word '이론서' in a presentation or an interview makes you sound intellectually curious and well-read. It's a great 'power word' for formal Korean.

Look for 'Best Sellers'

Even for 이론서, there are best sellers in Korea. These are usually the ones that explain difficult concepts most clearly. Check online reviews before buying.

Create a 'Glossary'

Theory books are full of jargon. Keep a small notebook to write down new terms you encounter in an 이론서. This will make your next reading session much smoother.

Cite properly

When writing a paper, always mention the specific 이론서 you referred to. In Korean academic writing, citing a well-known 이론서 adds credibility to your work.

Identify the field

Koreans almost always put the field name before '이론서'. If you hear '정치 이론서', you know immediately it's about politics. Focus on the prefix to understand the topic.

Slow and steady

No one reads an 이론서 like a novel. It's okay to read just 5-10 pages a day. The goal is deep understanding, not speed. Celebrate finishing even one chapter!

Einprägen

Eselsbrücke

Think of 'I-Ron' as 'I run' and 'Seo' as 'Show'. 'I run to the show to get my theory book!'

Visuelle Assoziation

Imagine a very thick, dusty book on a high library shelf with the word 'THEORY' glowing on the spine.

Word Web

이론 (Theory) 서적 (Books) 공부 (Study) 대학 (University) 지식 (Knowledge) 원리 (Principle) 학자 (Scholar) 독서 (Reading)

Herausforderung

Try to find one '이론서' in your house or a local library and write down its title in Korean using the word '이론서'.

Wortherkunft

Derived from the Hanja characters 理論 (i-ron) and 書 (seo). '이론' comes from 'i' (reason/logic) and 'ron' (discussion). '서' means book.

Ursprüngliche Bedeutung: A book containing logical discussions and principles.

Sino-Korean (Hanja-based vocabulary).

Kultureller Kontext

No specific sensitivities, but be aware that calling someone a 'theory-only person' (based on 이론서) can be a mild insult regarding their lack of practical skills.

In English, we often just say 'textbook' or 'manual,' but Koreans use '이론서' to specifically highlight the academic depth.

The term is frequently used in 'K-Dramas' set in universities or law firms. Korean 'Studygram' influencers often feature their '이론서' with aesthetic highlighters. Academic publishing houses like 'Beopmunsa' are famous for their thick '이론서'.

Im Alltag üben

Kontexte aus dem Alltag

University Library

  • 이론서 코너가 어디예요?
  • 이 이론서 대출 가능한가요?
  • 최신 이론서를 예약하고 싶어요.
  • 전공 이론서가 너무 많아요.

Bookstore

  • 기초 이론서 추천해 주세요.
  • 이 책은 이론서인가요, 실기서인가요?
  • 새로 나온 이론서 있어요?
  • 이론서 세일 하나요?

Study Group

  • 이론서 요약본 공유할래?
  • 이론서 내용이 너무 안 읽혀.
  • 우리 같이 이론서 스터디 하자.
  • 이론서만 봐서는 안 될 것 같아.

Academic Lecture

  • 교수님이 추천하신 이론서예요.
  • 이론서의 50페이지를 보세요.
  • 이론서와 실제 사례를 비교해 봅시다.
  • 이론서의 핵심 내용을 정리하세요.

Job Interview

  • 관련 이론서를 많이 읽었습니다.
  • 이론서에서 배운 지식을 적용하고 싶습니다.
  • 이론서보다는 실무 경험이 중요하다고 생각합니다.
  • 전공 이론서를 통해 기초를 다졌습니다.

Gesprächseinstiege

"요즘 읽고 있는 전공 이론서가 있나요?"

"가장 이해하기 힘들었던 이론서는 무엇인가요?"

"이론서와 실무 중 무엇이 더 중요하다고 생각하세요?"

"초보자에게 추천할 만한 기초 이론서가 있을까요?"

"이론서를 읽을 때 자신만의 노하우가 있나요?"

Tagebuch-Impulse

오늘 읽은 이론서의 내용 중에서 가장 인상 깊었던 부분을 적어보세요.

왜 사람들은 어려운 이론서를 읽어야 할까요? 자신의 생각을 써보세요.

내가 만약 이론서를 쓴다면, 어떤 주제로 쓰고 싶은지 상상해 보세요.

이론서에서 배운 내용이 실제 생활에서 도움이 된 경험이 있나요?

이론서만 공부하는 것의 장단점에 대해 서술해 보세요.

Häufig gestellte Fragen

10 Fragen

'이론서'는 한자어 기반의 격식 있는 표현이며, '이론 책'은 좀 더 일상적인 표현입니다. 학술적인 자리나 글쓰기에서는 '이론서'를 쓰는 것이 더 자연스럽습니다. 예를 들어, 대학 강의계획서에는 항상 '이론서'라고 적혀 있습니다.

네, 하지만 '기초 이론서'나 '입문 이론서'를 선택하는 것이 좋습니다. 일반적인 '전문 이론서'는 용어가 어렵고 내용이 깊어서 초보자가 읽기에는 힘들 수 있습니다. 먼저 '개론서'를 읽은 후에 '이론서'로 넘어가는 것을 추천합니다.

대형 서점(교보문고, 영풍문고 등)의 대학교재 코너나 전문 서적 코너에서 찾을 수 있습니다. 온라인 서점에서도 '이론서'라는 키워드로 검색하면 다양한 분야의 책을 찾을 수 있습니다. 대학가 주변의 헌책방에서도 전공 이론서를 자주 발견할 수 있습니다.

악기를 연주하는 것만 목표라면 실기서로 충분할 수 있지만, 작곡이나 깊이 있는 연주를 원한다면 '화성학 이론서'나 '대위법 이론서' 같은 책을 읽는 것이 큰 도움이 됩니다. 이론을 알면 음악의 구조를 더 잘 이해할 수 있기 때문입니다.

먼저 목차를 보고 전체적인 흐름을 파악하세요. 그 다음, 모르는 용어가 나오면 바로 찾아보면서 정독하는 것이 좋습니다. 한국 학생들은 보통 이론서를 읽으면서 핵심 내용을 노트에 요약하는 '단권화' 작업을 많이 합니다. 이는 나중에 복습할 때 매우 효율적입니다.

현대적인 의미의 '이론서'는 근대 교육 제도가 도입되면서 널리 쓰이기 시작했습니다. 그 전에는 '경전'이나 '논서' 같은 표현을 썼지만, 서구 학문이 들어오면서 '이론(Theory)'과 '서(Book)'가 결합된 형태인 '이론서'가 표준적인 용어가 되었습니다.

법학은 수많은 법 조문과 판례, 그리고 그 바탕이 되는 법 철학을 모두 다루어야 하기 때문입니다. 따라서 법학 이론서는 보통 수천 페이지에 달하며, 이를 '기본서'라고 부르기도 합니다. 법대생들은 이 두꺼운 이론서를 여러 번 반복해서 읽습니다.

어린이용 책에는 '이론서'라는 단어를 잘 쓰지 않습니다. 대신 '원리 과학'이나 '알기 쉬운 법칙' 같은 제목을 사용합니다. '이론서'라는 단어 자체가 주는 무게감 때문에 주로 성인이나 대학생 이상의 독자를 대상으로 할 때 사용됩니다.

상대방이 특정 분야를 깊게 공부하고 있다면 아주 좋은 선물이 될 수 있습니다. 하지만 공부와 관련 없는 사람에게는 너무 딱딱하고 어려운 선물이 될 수 있으니 주의해야 합니다. 전공자에게는 최신 이론서가 최고의 선물이 되기도 합니다.

대부분의 유명한 외국 이론서는 전문가들이 번역하므로 믿을 만합니다. 하지만 가끔 번역이 매끄럽지 않은 경우(번역투)가 있어 이해하기 힘들 때도 있습니다. 그럴 때는 원서와 함께 보거나, 여러 번역본을 비교해 보는 것이 좋습니다.

Teste dich selbst 200 Fragen

writing

Write a sentence using '이론서' and '읽다'.

Well written! Good try! Check the sample answer below.

Richtig! Nicht ganz. Richtige Antwort:
writing

Translate: 'I need a music theory book.'

Well written! Good try! Check the sample answer below.

Richtig! Nicht ganz. Richtige Antwort:
writing

Translate: 'This theory book is too difficult.'

Well written! Good try! Check the sample answer below.

Richtig! Nicht ganz. Richtige Antwort:
writing

Write a sentence about why theory books are important.

Well written! Good try! Check the sample answer below.

Richtig! Nicht ganz. Richtige Antwort:
writing

Translate: 'The professor wrote a new theory book.'

Well written! Good try! Check the sample answer below.

Richtig! Nicht ganz. Richtige Antwort:
writing

Write a sentence using '참고하다' and '이론서'.

Well written! Good try! Check the sample answer below.

Richtig! Nicht ganz. Richtige Antwort:
writing

Translate: 'There are many theory books in the library.'

Well written! Good try! Check the sample answer below.

Richtig! Nicht ganz. Richtige Antwort:
writing

Write a sentence comparing an '이론서' and a '실기서'.

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Richtig! Nicht ganz. Richtige Antwort:
writing

Translate: 'I bought a basic theory book for my exam.'

Well written! Good try! Check the sample answer below.

Richtig! Nicht ganz. Richtige Antwort:
writing

Write a sentence about your favorite theory book.

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writing

Translate: 'The content of this theory book is very systematic.'

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Richtig! Nicht ganz. Richtige Antwort:
writing

Write a sentence using '집필하다'.

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Richtig! Nicht ganz. Richtige Antwort:
writing

Translate: 'Please recommend a good theory book.'

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Richtig! Nicht ganz. Richtige Antwort:
writing

Write a sentence using '이론서' as the subject.

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Richtig! Nicht ganz. Richtige Antwort:
writing

Translate: 'I read the theory book from cover to cover.'

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Richtig! Nicht ganz. Richtige Antwort:
writing

Write a sentence about a science theory book.

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Richtig! Nicht ganz. Richtige Antwort:
writing

Translate: 'I am looking for a theory book about law.'

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Richtig! Nicht ganz. Richtige Antwort:
writing

Write a sentence using '이론서' and '도서관'.

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Richtig! Nicht ganz. Richtige Antwort:
writing

Translate: 'Theory books are sometimes boring.'

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Richtig! Nicht ganz. Richtige Antwort:
writing

Write a sentence using '최신' and '이론서'.

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Richtig! Nicht ganz. Richtige Antwort:
speaking

Pronounce '이론서' correctly.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'I'm reading a theory book' in Korean.

Read this aloud:

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speaking

Say 'This book is a theory book' in formal Korean.

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speaking

Ask 'Where are the theory books?' in Korean.

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speaking

Say 'I need to buy a theory book' in Korean.

Read this aloud:

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speaking

Explain what an '이론서' is in simple Korean.

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speaking

Say 'The theory book is difficult but interesting' in Korean.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'I borrowed this theory book from the library' in Korean.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Ask 'Do you have any recommended theory books?' in Korean.

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Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'I'm writing a theory book' in Korean.

Read this aloud:

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speaking

Say 'Please look at the theory book' in polite Korean.

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speaking

Say 'I study with a theory book every day' in Korean.

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speaking

Say 'The theory book is thick' in Korean.

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speaking

Say 'I want to read a science theory book' in Korean.

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speaking

Say 'This is a specialized theory book' in Korean.

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speaking

Say 'The theory book was very helpful' in Korean.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Ask 'How much is this theory book?' in Korean.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'I finished the theory book' in Korean.

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Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'I refer to the theory book often' in Korean.

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Richtig! Nicht ganz. Richtige Antwort:
speaking

Say 'Let's study the theory book together' in Korean.

Read this aloud:

Richtig! Nicht ganz. Richtige Antwort:
listening

Listen to the word: [이론서]. What does it mean?

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Richtig! Nicht ganz. Richtige Antwort:
listening

Listen to the sentence: '이론서를 사러 가요.' Where is the person going?

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen to the sentence: '이론서가 너무 어려워요.' How is the book?

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen to the sentence: '도서관에 이론서가 많아요.' Where are the books?

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen to the sentence: '음악 이론서를 읽고 있어요.' What kind of theory book is it?

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen to the sentence: '교수님이 이론서를 주셨어요.' Who gave the book?

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen to the sentence: '이론서를 참고하세요.' What should you do?

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Richtig! Nicht ganz. Richtige Antwort:
listening

Listen to the sentence: '이론서의 핵심을 정리해요.' What is being organized?

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Richtig! Nicht ganz. Richtige Antwort:
listening

Listen to the sentence: '새로운 이론서가 나왔어요.' What happened?

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Richtig! Nicht ganz. Richtige Antwort:
listening

Listen to the sentence: '이론서를 독파했습니다.' Did the person finish the book?

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen to the sentence: '이론서보다는 실습이 중요해요.' What is more important?

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen to the sentence: '이론서에 그림이 없어요.' Are there pictures?

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen to the sentence: '이론서를 꼼꼼히 보세요.' How should you look at it?

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen to the sentence: '전공 이론서를 빌렸어요.' What kind of book did they borrow?

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:
listening

Listen to the sentence: '이론서의 가격은 삼만 원입니다.' How much is the book?

Richtig! Nicht ganz. Richtige Antwort:
Richtig! Nicht ganz. Richtige Antwort:

/ 200 correct

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