Fire in Korean: 불 (bul) Meaning and Pronunciation

Key Facts

• Hangul: 불; Revised Romanization: bul
• Part of speech: noun
• Origin: native Korean
• Register: Neutral.

Fire in Korean: What Does 불 Mean?

불 has two main senses: fire and light. The register is neutral. In some everyday phrases it can also refer to heat, such as the heat on a stove, but fire and light are the meanings to learn first. Context settles it: 불이 났어요 is a disaster, while 불 좀 켜 주세요 is a request about a lamp.

How Do You Pronounce 불?

The word is a single syllable, bul, ending in ㄹ, which at the end of a syllable is a clear l. The initial ㅂ is plain: avoid the strong puff of air used for ㅍ. When a particle follows, as in the first example, the ㄹ slides over and becomes a tap, so 불이 is romanized buri.

Example Sentences with 불

This sentence reports an emergency. The verb 나다 pairs with 불 to say that a fire "comes out", so English "broke out" is the natural match.

Here 불 means light. 켜 comes from 켜다 (to switch on), 주세요 makes it a request, and 좀 softens it.

The mirror image of the last line. 꺼 switches things off, and the same noun 불 now means the lit lamp rather than flames.

Common Phrases and Collocations

All three collocations use 불 with a verb of starting or stopping: 켜다 to switch on, 끄다 to switch off, 나다 to break out. One noun, three actions.

The Mistake to Avoid

Wrong: ✗ 물 좀 켜 주세요. (물 is water)

Correct: ✓ 불 좀 켜 주세요. (Please turn on the light.)

Why: 불 and 물 differ by one consonant, so learners mix them up. Learners also forget that 불 is the everyday word for a light: Korean literally says "turn on the fire" where English says "turn on the light".

불 Compared with Similar Words

Three neighbours help sort out the use. 전등 is the physical lamp or fixture, 화재 is the formal word for a fire disaster, and 물 is the opposite element. Reach for 불 in speech, and 화재 when reading a news report.

Where Does the Word Come From?

불 is native Korean, with no hanja form. The Sino-Korean 화 (火) appears instead in formal words such as 화재.

Cooking Soup: Turn the Heat Down

Two housemates are making soup. The pot starts boiling, and one asks the other to reduce the heat before switching it off.

Jisu

Alex

Jisu

불을 줄이다 means to reduce the heat. It leaves the stove on at a lower setting. 불을 끄다 stops the heat, so the final request is a different action. In a kitchen, 불 refers naturally to the stove's heat even when the speaker is not describing a visible flame.

What Does 불 Mean in a Recipe?

Recipes use 센 불 for high heat, 중불 for medium heat and 약불 for low heat. These labels tell you the strength of the heat used for cooking. A direction mentioning 약불 is about the setting under the pan, not about a small accidental fire elsewhere in the kitchen.

불을 줄이다 means to turn the heat down; 불을 높이다 means to turn it up. Both change the amount of heat. This helps explain why “turn off” and “turn down” need different verbs even though English uses “turn” for both. The dialogue finishes with 꺼 주세요 because the cooking heat is no longer needed.

Fire Expressions beyond a Stove or Lamp

불이 붙다 literally means that something catches fire. It can also describe enthusiasm or competition suddenly gaining energy. In a sports story, the subject may be the competition itself. The surrounding words tell you whether flames are involved.

불을 보듯 뻔하다 means that an outcome is obvious. Its literal image is seeing a fire clearly, but its everyday use is about being certain how something will turn out. You might hear it when someone predicts the result of an unprepared exam attempt. It does not report a fire. The Korean-English Learners' Dictionary entry for 불 includes this expression.

Where Will You See Fire-Related Words?

In a home, 불을 켜다 and 불을 끄다 usually concern the room's light. Near a stove, the same requests can concern a burner. A speaker may name the room or point toward the switch to make the intended meaning clear. 불 itself does not name the lamp's shape or the type of bulb.

News reports often use 화재 for a destructive fire and 산불 for a forest fire. 산 means mountain, but 산불 is the established word for a fire in forested mountain areas. 불 remains the everyday word in a spoken report such as 불이 났어요.

Related Words for Heat, Light and Fire

For a contrast with the substance used in many ordinary fire-related scenes, compare 물, water. The existing culture vocabulary list gives the page's broader topic set.

Quick Self-Test

1. In a recipe, does 약불 mean low heat or an emergency?
2. What is the difference between 불을 줄이다 and 불을 끄다?
3. Does 불을 보듯 뻔하다 describe literal flames?

Frequently Asked Questions

How do you say "fire" in Korean?

Fire in Korean is 불 (bul). The same word also means "light", so context tells you which one is meant.

How do you ask someone to turn on the light?

Say 불 좀 켜 주세요. 켜다 means to switch on, and 좀 makes the request softer.

Which verb switches a light or fire off?

끄다. 불을 끄다 means both to turn off a light and to put out a fire, as in 불을 꺼 주세요 (Please turn off the light).

Is 불 the same as 물?

No. 불 means fire or light, and 물 means water. The words differ only in their first consonant, ㅂ versus ㅁ.

Related Words and What to Learn Next

• Theme list: Culture and religion words. 불 sits in that list next to other culture words.
• Index: look up more words near "fire" in Korean words A to Z.
• Practice: the word for fire fits into the vocabulary flashcard decks.
• Compare with the page for water.