エネルギー

• Reading: エネルギー
• Romaji: enerugi
• Pronunciation: /e.ne.ɾɯ.ɡiː/

Meaning

Energy; the capacity to do work. Used for both physical energy and vitality.

A loanword from German 'Energie.' Used broadly in scientific, environmental, and everyday contexts. Can refer to physical energy in physics, power sources like solar or nuclear energy, or personal vitality and vigor. Common compounds include 再生エネルギー (renewable energy) and エネルギー源 (energy source).

Examples

1. 太陽からのエネルギーを電気に変える技術がある。 There is technology that converts energy from the sun into electricity.
2. 朝ごはんを食べるとエネルギーが出る。 Eating breakfast gives you energy.
3. 日本はエネルギーの多くを輸入に頼っている。 Japan relies on imports for much of its energy.

Usage Guide

Context: science, environment, daily life

Tone: neutral

Origin & History

Borrowed from German 'Energie,' which itself derives from Greek 'energeia' meaning activity or operation. Entered Japanese through scientific terminology in the Meiji era.

Cultural Context

Era: Modern

Generation: All ages

Social background: Universal