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📖
Featured Word B2

combustion (noun)

Combustion is a chemical process in which a substance reacts rapidly with oxygen and gives off heat. It is commonly referred to as burning and is the primary reaction that powers engines and produces fire.

💬 例文

"The internal combustion engine changed how people travel."

💡 覚え方のコツ

Think of a 'Bus' on fire. Com-BUS-tion. The BUS is the part that is burning (combusting).

🏛️ 由来

⚠️ よくある間違い

Using 'combustion' to mean 'ignition'. → Ignition starts the fire; combustion is the fire burning.

Saying 'The car engine burns'. → The car has an internal combustion engine.