炎

1. Origins, structure, and basic meaning

• Structure: The written form is 炎, read ほのお. This noun denotes a visible flame that gives off light and heat.
• Basic usage: 暖炉の炎 lights a room, while ろうそくの炎 is a small flame flickering in the wind.

2. Common pitfalls and similar expressions

• Fireplace light
  • Flames from the fireplace illuminate the room. Example: 暖炉の炎が部屋を明るく照らした。 — The fireplace flames brightly lit the room.
• A candle in the wind
  • The candle flame flickers as the wind grows stronger. Example: 風が強くなり、ろうそくの炎が揺れた。 — As the wind strengthened, the candle flame flickered.