계발하다
To make a skill or ability better through practice.
Explanation at your level:
At this level, think of 계발하다 as 'getting better.' If you study hard, you are 계발-ing your brain. It is like a plant growing bigger.
You use 계발하다 when you talk about your hobbies or skills. For example, if you practice soccer to get better, you are 계발-ing your athletic skills. It is about your own growth.
Intermediate learners use this word to talk about professional goals. 'I want to 계발 my English skills' is a common way to express a desire for improvement. It sounds more professional than just saying 'study.'
At this level, you distinguish between 개발 (physical) and 계발 (mental). You use it when discussing personal growth, leadership training, or educational programs designed to help people reach their potential.
In academic or professional settings, 계발하다 is used to describe systematic improvement. You might discuss 'curriculum 계발' or 'strategic talent 계발.' It implies a structured approach to growth rather than random practice.
At the mastery level, you understand the nuance of 'latent potential.' 계발하다 is the act of bringing out what is hidden. It is often used in philosophical discussions about human nature, self-actualization, and the cultivation of virtue or wisdom.
Word in 30 Seconds
- Used for human potential.
- Distinct from physical development.
- Common in self-help contexts.
- Active, positive verb.
When you hear the word 계발하다, think of it as 'unlocking' or 'polishing' something that is already inside you. Unlike 개발하다 (which often refers to developing land or technology), 계발하다 is almost exclusively used for human potential, intelligence, and skills.
It implies that you have a seed of talent, and you are providing the water and sunlight to help it grow. Whether it is your creativity, your leadership skills, or your ability to speak a foreign language, if you are working to make those abilities stronger, you are 계발하는 중!
It is a very positive and proactive word. It suggests a journey of growth rather than just a one-time task. As your teacher, I love this word because it reminds us that we are all works in progress, constantly trying to become the best versions of ourselves.
The word 계발하다 is rooted in Sino-Korean characters (Hanja): 啓 (계) meaning 'to open' or 'to enlighten,' and 發 (발) meaning 'to shoot out' or 'to develop.' Together, they literally mean 'to open and release' one's potential.
Historically, this term was associated with the enlightenment of the mind. It evolved from classical texts where it described the process of a student opening their mind to wisdom. It is a cousin to the word 개발 (development), but they split paths in usage: 개발 handles physical objects and infrastructure, while 계발 handles the human spirit and intellect.
In modern Korean, the distinction is strictly maintained to ensure we don't confuse 'building a road' with 'building a person's character.' It is a beautiful example of how language evolves to categorize the physical world versus the internal, human world.
You will most commonly see 계발하다 paired with words related to the mind or specific talents. Common collocations include 자기계발 (self-development), 능력 계발 (ability development), and 창의력 계발 (creativity development).
It is used in both formal and casual settings. In a business context, you might hear a manager say, 'We need to focus on 직원들의 역량 계발' (developing employee capabilities). In a casual conversation, you might say, 'I am reading books for 자기계발' (self-improvement).
Remember, you don't 계발 a building or a computer program. If you try to say 'I am 계발-ing my phone,' native speakers will be very confused! Stick to using it for people, minds, and talents.
While 계발하다 is a standard verb, it is the heart of several common expressions:
- 자기계발에 힘쓰다: To strive for self-improvement.
- 잠재력을 계발하다: To develop one's latent potential.
- 계발의 기회: An opportunity for growth.
- 창의성을 계발하다: To nurture creativity.
- 능력 계발을 도모하다: To plan for skill enhancement.
As a regular verb, 계발하다 follows the standard -하다 conjugation pattern. You can say 계발한다 (present), 계발했다 (past), or 계발할 것이다 (future).
Pronunciation-wise, it is pronounced [계발하다]. A common mistake is to mispronounce it as [개발하다], which sounds like 'development' (of things). Keep the 'gye' (계) sharp and distinct. It rhymes loosely with other -하다 verbs like 개발하다, 생활하다, and 대화하다.
When using it in a sentence, it usually takes an object marked by the particle -을/를. For example: 나는 능력을 계발한다 (I develop my ability). It is a transitive verb, so it always needs that object to make sense!
Fun Fact
The character 啓 literally depicts a hand opening a door.
Pronunciation Guide
Standard Korean pronunciation.
Standard Korean pronunciation.
Common Errors
- Mixing up 'gae' and 'gye'
- Dropping the 'h' sound
- Mispronouncing as 'gaebal'
Rhymes With
Difficulty Rating
Common in written text.
Useful for essays.
Used in professional talk.
Clear pronunciation.
What to Learn Next
Prerequisites
Learn Next
Advanced
Grammar to Know
-하다 Verb Conjugation
계발하다 -> 계발한다
Object Particle -을/를
능력을 계발하다
Examples by Level
나는 실력을 계발한다.
I / skill / develop.
Simple present.
나는 꿈을 계발한다.
그는 재능을 계발한다.
우리는 능력을 계발한다.
그녀는 노래를 계발한다.
공부를 해서 계발한다.
매일 계발한다.
열심히 계발한다.
자기계발을 시작했다.
창의력을 계발하고 싶다.
운동으로 체력을 계발한다.
좋은 습관을 계발하자.
그는 재능을 계발 중이다.
독서는 지능을 계발한다.
새로운 기술을 계발한다.
나만의 능력을 계발한다.
자기계발 서적을 읽는 것이 좋다.
회사는 인재 계발에 투자한다.
잠재력을 계발하는 것은 중요하다.
언어 능력을 계발하는 방법.
창의적 사고를 계발해야 한다.
취미를 통해 재능을 계발한다.
리더십을 계발하고 싶습니다.
전문성을 계발하기 위해 노력한다.
그는 자기계발을 위해 학원에 다닌다.
잠재된 재능을 계발할 기회이다.
지속적인 자기계발이 필요하다.
창의성 계발을 위한 교육 프로그램.
자신의 역량을 계발하는 과정.
성공을 위해 능력을 계발하라.
예술적 감각을 계발하는 연습.
다양한 경험을 통해 자아를 계발한다.
인적 자원 계발은 기업의 핵심이다.
그는 자기계발에 몰두하는 사람이다.
잠재력을 계발하여 전문가가 되었다.
교육은 인간의 능력을 계발한다.
창의적 문제 해결 능력을 계발하다.
자기계발의 중요성을 강조했다.
꾸준한 노력으로 재능을 계발했다.
미래를 위해 역량을 계발하는 중이다.
인간의 잠재력을 계발하는 것은 고귀한 일이다.
지적 성숙을 위한 끊임없는 자기계발.
그는 자신의 철학적 사유를 계발했다.
예술적 영감을 계발하여 명작을 남겼다.
자기계발은 평생에 걸친 과업이다.
잠재된 가능성을 계발하여 꽃피우다.
사회적 가치를 창출하며 자아를 계발한다.
내면의 힘을 계발하는 수련을 했다.
Common Collocations
Idioms & Expressions
"자기계발의 시대"
An era focused on self-improvement.
우리는 자기계발의 시대에 살고 있다.
neutral"계발의 여지"
Room for improvement.
아직 계발의 여지가 많다.
neutral"잠재력 계발"
Unlocking potential.
잠재력 계발은 필수적이다.
formal"계발을 꾀하다"
To plan for improvement.
능력 계발을 꾀하는 중이다.
formal"계발에 전념하다"
To dedicate oneself to growth.
그는 자기계발에 전념한다.
neutral"계발을 도모하다"
To seek improvement.
우리는 능력 계발을 도모한다.
formalEasily Confused
Sounds very similar.
개발 is for things/land; 계발 is for human talent.
아파트 개발 vs 재능 계발
Both mean improvement.
발전 is about progress/state; 계발 is about internal growth.
기술이 발전하다 vs 능력을 계발하다
Sentence Patterns
Subject + [Skill] + 를 + 계발하다
나는 외국어 실력을 계발한다.
Subject + 는 + 자기계발 + 에 + 힘쓴다
그는 자기계발에 힘쓴다.
Subject + 는 + [Potential] + 을 + 계발할 + 기회이다
이것은 잠재력을 계발할 기회이다.
Word Family
Nouns
Verbs
Related
How to Use It
7
Formality Scale
Common Mistakes
개발 is for physical things; 계발 is for human potential.
It is an active verb; don't add causative unless someone else is doing it.
Usually you do the action yourself.
Focus on the active effort of the person.
Don't say 'phone-을 계발하다'.
Tips
The 'People' Rule
If it has a brain or a heart, use 계발.
Resume Power
Use it to talk about your growth.
Self-Help Culture
Korea has a huge '자기계발' culture.
The -하다 suffix
Treat it like any other -하다 verb.
Sharp 'Gye'
Don't let it slide into 'Gae'.
Don't build with it
Don't use it for construction.
Hanja Roots
It means opening potential.
Pair it
Always pair it with '능력' or '재능'.
Memorize It
Mnemonic
Gye (Open) + Bal (Shoot out) = Opening your talent like a flower shooting out.
Visual Association
A lightbulb turning on inside a person's head.
Word Web
Challenge
Write one thing you want to '계발' this month.
Word Origin
Sino-Korean
Original meaning: To open (啓) and emit/develop (發)
Cultural Context
None, it is a very positive, encouraging word.
Equivalent to 'self-improvement' or 'personal development'.
Practice in Real Life
Real-World Contexts
School/University
- 능력을 계발하다
- 창의성 계발
- 학습 계발
Workplace
- 역량 계발
- 인재 계발
- 자기계발 시간
Self-Help
- 자기계발 서적
- 계발 목표
- 잠재력 계발
Hobbies
- 재능 계발
- 취미를 통한 계발
Conversation Starters
"어떤 능력을 계발하고 싶으세요?"
"자기계발을 위해 무엇을 하시나요?"
"가장 중요한 계발 분야는 무엇일까요?"
"재능을 계발하는 것이 왜 중요할까요?"
"계발에 도움이 되는 책을 추천해주세요."
Journal Prompts
내가 올해 계발하고 싶은 능력은 무엇인가?
지난달에 새로 계발한 나의 재능은?
자기계발이 나의 삶을 어떻게 바꾸었는가?
내가 가진 잠재력 중 아직 계발하지 않은 것은?
Frequently Asked Questions
8 questionsNo, 개발 is for things, 계발 is for people.
Yes, for skill development.
It is neutral but often used in formal contexts.
Yes, 계발했다.
Use '계발하고 있다'.
퇴보하다 (regress).
Yes, especially regarding hobbies.
Yes, it implies effort.
Test Yourself
나는 나의 재능을 ___.
계발하다 is used for talent.
Which is correct?
계발 is for human skills.
계발하다 is the same as building a house.
That is 개발하다.
Word
Meaning
Matching concepts.
Subject-Object-Verb order.
Score: /5
Summary
계발하다 is the act of unlocking your inner potential through effort.
- Used for human potential.
- Distinct from physical development.
- Common in self-help contexts.
- Active, positive verb.
The 'People' Rule
If it has a brain or a heart, use 계발.
Resume Power
Use it to talk about your growth.
Self-Help Culture
Korea has a huge '자기계발' culture.
The -하다 suffix
Treat it like any other -하다 verb.
Related Content
This Word in Other Languages
More academic words
입체적
B2Having a three-dimensional effect or examining something from multiple perspectives rather than a single flat view. It implies a comprehensive and detailed analysis.
~에 관해
B1About, concerning.
~에 대하여
A2Concerning or regarding a particular subject; about.
~대해
A2About; concerning; regarding.
~에 관하여
A2Regarding, concerning, about (a topic).
~에 대해(서)
A1Indicates the topic or subject of discussion, meaning 'about' or 'regarding'.
무엇보다
A2More than anything else; above all.
결석생
A2A student who is absent from class.
추상
A2Abstraction; the quality of dealing with ideas rather than events.
추상화하다
B2To consider something theoretically or separately from its physical reality. It involves extracting general principles from specific examples.