Last Updated：2025/11/19

An evacuated glass bulb containing a metal filament which is heated by electrical resistance to produce light.

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light bulb

Source Word

light bulb

IPA(Pronunciation)

broadly figuratively

An evacuated glass bulb containing a metal filament which is heated by electrical resistance to produce light.

Japanese Meaning

金属フィラメントを内蔵し、電気抵抗により加熱されることで光を発する、内部が真空状態のガラス製の球体

I replaced the burnt-out light bulb in the lamp so I could read late into the night.

ランプの切れた白熱電球を取り替えて、夜遅くまで読めるようにした。

Sense（1）

An evacuated glass bulb containing a metal filament which is heated by electrical resistance to produce light.

Sense（2）

(by extension) An article that resembles such a bulb and converts electricity to light by any process.

a fluorescent light bulb

Sense（3）

(figuratively) Used in reference to the sudden arrival of a realization, an inspiration, an idea, or the like.

a light bulb moment

light bulbs

（ plural ）