8 Kanji with 火 (か) | Master Fire Radical Words at Once
Learn 8 essential JLPT N3 kanji related to fire (火) in one bundle.
Containing the fire radical (火), these kanji carry meanings associated with fire, heat, and burning phenomena.
Compare and memorize the on-yomi, kun-yomi, and common everyday words for each kanji.
How this bundle was curated
All items at a glance
| Kanji | On-yomi | Kun-yomi | Core Meaning |
|---|---|---|---|
| 火 | か | ひ | Fire |
| 炎 | えん | ほのお | Flame, Blaze |
| 災 | さい | わざわい | Disaster, Calamity |
| 焼 | しょう | やく | Bake, Burn |
| 燃 | ねん | もえる | Burn, Combust |
| 煙 | えん | けむり | Smoke |
| 灯 | とう | ひ | Lamp, Light |
| 炭 | たん | すみ | Charcoal |
Item by item
Kun: ひ
On: か
Fire
Refers to the basic concept of 'fire' itself. It is widely used in everyday life in words like 火曜日 (Tuesday) and 火災 (fire disaster).
Kun: ほのお
On: えん
Flame / Blaze
Composed of two 'fire' (火) kanji stacked together, it means a strong, blazing flame. It is also used in medical terms like 炎症 (inflammation) to indicate a 'heating up' symptom.
Kun: わざわい
On: さい
Disaster
A combination of water (巛) and fire (火), representing natural disasters or major calamities. Used in words like 火災 (fire disaster) and 災害 (disaster).
Kun: やく
On: しょう
Bake / Burn
Represents the action of grilling/baking food (焼く) or something getting burned (焼ける). Frequently appears in dish names like 焼肉 (yakiniku) and 焼き鳥 (yakitori).
Kun: もえる
On: ねん
Burn / Combust
Means fuel burning or emotions intensely flaring up. Used in words like 可燃性 (combustibility) and 燃料 (fuel).
Kun: けむり
On: えん
Smoke
Refers to the smoke generated when a fire (火) burns. It is essential in tobacco-related words like 禁煙 (no smoking) and 喫煙 (smoking).
Kun: ひ
On: とう
Lamp / Light
Means a lamp or light that illuminates the darkness. Generally used for artificial lights like 街灯 (streetlights) and 電灯 (electric lights).
Kun: すみ
On: たん
Charcoal
Refers to charcoal made by burning wood, or coal. Used in chemistry and fuel-related words like 炭素 (carbon) and 石炭 (coal).
Practice with examples
How to decide when unsure
- Difference between 焼 (やく) and 燃 (もえる): 焼 is often used for intentional actions that 'apply heat to change form,' like grilling meat or baking bread. In contrast, 燃 is mainly used for the natural phenomenon of combustion, where fuel or trash 'burns with flames.'
- Distinguishing 灯 (ひ) and 火 (ひ): Both share the kun-yomi 'ひ', but 火 (ひ) refers to actual fire with hot heat, while 灯 (ひ / あかり) refers to a lamp or light that illuminates the darkness.
- Position of the fire radical (火): When placed at the bottom of a kanji like in 炎, 災, and 炭, it takes a flattened shape (or the four-dot 灬 form). When placed on the left like in 焼, 燃, 煙, and 灯, it is called 'hi-hen' and takes a slimmer shape.
Common mistakes
Both can translate to 'burn' in English, making them easy to confuse. While both can be used when a house burns to ashes, it is more natural to use 焼ける (やける) when saying 'meat is grilled/burnt' or 'skin is tanned/sunburned'.
Wrong example: 日差しが強くて、肌が燃えてしまった。/Correct example: 日差しが強くて、肌が焼けてしまった。
When the surface of skin, bread, or meat is browned or cooked by heat, it is expressed with 焼ける (やける).
Mini quiz
Which of the following is the correct kanji for "no smoking"?
One-line summary
Kanji with the fire radical (火) have highly intuitive meanings. Comparing their subtle nuances (bake, burn, smoke, light, etc.) will greatly boost your N3 vocabulary skills.
FAQ
How are 炎 (ほのお) and 火 (ひ) different?
火 (ひ) is the broadest term referring to fire as a substance or phenomenon itself. On the other hand, 炎 (ほのお) specifically refers to the red, hot "flame" or "blaze" that shoots up when a fire burns.
Does the four-dot radical (灬) at the bottom of a kanji also have to do with fire?
Yes, the four dots (灬) are a variant form of the fire radical (火) used at the bottom of a kanji. It frequently appears in kanji related to heat or fire, such as 熱 (heat) and 煮 (boil).
