In Korean, several verbs like 쓰다, 사용하다, and 이용하다 convey the meaning of the English word “to use”, but they each carry slightly different meanings and usage contexts. These are the most commonly used verbs:
- 쓰다 (/sseuda/)
- 사용하다 (/sayonghada/)
- 이용하다 (/iyonghada/)
Although they may seem interchangeable when you first learn about them but these verbs have distinct functions and are used in different situations depending on whether you’re talking about an object, a service, or a more formal context.
The list of points will help you understand the differences between them through their meanings, functions, usage nuances, and example sentences, so you can choose the right Korean word carrying the meaning “to use” when speaking or writing in Korean.
The Versatile 쓰다
The verb 쓰다 is one of the most commonly used and versatile verbs in Korean. Its basic meanings include:
- To write (e.g., letters, emails, names)
- To use (e.g., tools, apps, money)
- To wear (on the head or face, like hats or glasses)
- To taste bitter (used as an adjective)
Because of this, 쓰다 appears very frequently in everyday speech and writing. It is the most casual and broadly used among the three verbs being compared.

For example:
편지를 써요.
I write a letter..
컴퓨터를 써요.
I use a computer.
약이 써요.
The medicine is bitter.
Unlike 사용하다 or 이용하다, which tend to sound more formal or technical, 쓰다 feels natural in daily conversations, especially when referring to simple, physical actions.
The Formal and Functional 사용하다
The verb 사용하다 means “to use” and is often used in formal, technical, or instructional contexts. It focuses on the functional use of an object, tool, method, or language—rather than simply using something casually (like with 쓰다).
Unlike 쓰다, which is more casual and broad, 사용하다 sounds a bit more neutral, polite, or precise, and is commonly seen in:
- User manuals
- Public instructions
- Written/formal speech
Examples of 사용하다 in Different Contexts:
한국어를 사용합니다.
I use Korean. (e.g., in formal writing or in professional settings)
비밀번호를 사용해 로그인하세요.
Use your password to log in.
새로운 기술을 사용하고 있어요.
We are using new technology.
So while 사용하다 can overlap with 쓰다, it tends to sound more polished and intentional, making it ideal for professional, academic, or technical contexts.
Compare and study the differences between 쓰다, 사용하다, and 이용하다 through the table shown below:
쓰다 | 사용하다 | 이용하다 | |
---|---|---|---|
Meaning | to use, to write, to wear | to use (formal/neutral) | to make use of, to utilize |
Function | used for writing, wearing (hat, glasses), using everyday objects. | used for tools, devices, languages; slightly formal or technical. | used for services, places, systems, opportunities (even abstract). |
Nuance | casual, common in daily life | more formal or written | emphasizes usage of services/facilities or opportunities; can imply taking advantage |
Example | 펜을 써요. /peneul sseoyo/ I use a pen. 편지를 써요. /pyeonjireul sseoyo/ I write a letter. 모자를 써요. /mojareul sseoyo/ I wear a hat. | 이 기계를 사용하세요. /i gigyereul sayonghaseyo/ Please use this machine. 한국어를 사용합니다. /hangugeoreul sayonghamnida/ I use Korean. 비밀번호를 사용해요. /bimilbeonhoreul sayonghaeyo/ I use a password. | 지하철을 이용해요. /jihacheoreul iyonghaeyo/ I use the subway. 기회를 잘 이용하세요. /gihoereul jal iyonghaseyo/ Make good use of the opportunity 인터넷을 이용해 정보를 찾아요. /inteonesreul iyonghae jeongboreul chajayo/ I find information using the internet.. |
Special Uses of 이용하다
The verb 이용하다 is often used when talking about public services, transportation, facilities, or benefits. It carries the nuance of “making use of a service or system” rather than simply using a physical object.
For example:
지하철을 이용해요.
I use the subway.
도서관을 이용할 수 있어요.
You can use the library.
It is also commonly used in formal settings when referring to taking advantage of an opportunity or benefit:
혜택을 이용하세요.
Take advantage of the benefit.
Does 이용하다 have a negative nuance?
In some contexts, 이용하다 can also imply a negative nuance like “exploiting” or “taking advantage of someone,” so be mindful of the tone and situation:
그는 사람들을 이용했어요.
He took advantage of people.
So, 이용하다 is especially useful when talking about systems, facilities, and opportunities, often in a formal or practical context.

Are 쓰다, 사용하다, and 이용하다 Interchangeable?
Yes, in some contexts, 쓰다, 사용하다, and 이용하다 can be used interchangeably—especially when the meaning is simply “to use.” For example, when talking about using a phone or the internet, all three can often be understood correctly:
- 핸드폰을 써요.
- 핸드폰을 사용해요.
- 핸드폰을 이용해요.
(All can mean: “I use a phone.”)
- 핸드폰을 이용해요.
However, while the core meaning remains similar, the nuance and formality may change:
- 쓰다 is more casual and commonly spoken.
- 사용하다 sounds more neutral or formal (used in manuals or instructions).
So while they may be interchangeable at times, choosing the right verb based on the situation can make your Korean sound more natural and accurate.
Related: Click here to check out the difference between 춥다 and 차갑다!