Refers to the light of a lamp, candle, or similar flame-based source. Often used in literary or slightly formal contexts.
I saw a small light in the distance.
He put out the lamp and went to sleep.
I lit a lamp in the room and read a book.
The lamplight went out because of the wind.
I wrote a letter under the lamplight.
光 is a broad term covering any light or ray (sunlight, starlight, etc.), whereas 灯火 emphasizes a man-made flame or lamp as the source.
灯 is a short, literary word for a lamp's light and is nearly interchangeable with 灯火, though 灯火 is slightly more formal and compound-like.
灯火 is a formal, written-style word for lamplight used in official or literary contexts, while 灯 is the softer, more common poetic term.
闇 means darkness, the direct opposite of the illumination that 灯火 provides.
light; lamp · counter for electric lights
Standard modern spelling.
Contains outdated kanji 燈; not used in modern writing.
Compound of 灯 (tō, 'lamp, light') and 火 (ka, 'fire'). The reading is on'yomi.