電光|でんこうdenkou[0]heiban (flat)

1. nounlightning
2. nounelectric illumination; light from an electric source

• Synonym稲妻いなずまNeutralThe most common everyday word for lightning; 「電光」 is seen mostly in phrases like 「電光石火」 and 「電光掲示板」.
• Synonym稲光いなびかりNeutralThe everyday word for a flash of lightning; 「電光」 is more written and formal, and can also mean electric light.
• Synonym雷光らいこうWrittenRefers to the light of a lightning flash; a written word, used relatively rarely.
• Synonym霹靂へきれきWrittenA written word for a sudden, crashing thunderclap; stresses the sound of thunder, and is often encountered in 「青天の霹靂」.
• SynonymライトニングNeutralA loanword for lightning, used mostly in names and titles; not part of everyday speech.
• Related雷かみなりNeutralThe common word for thunder and lightning; also figurative for an outburst of anger, as in 「雷が落ちる」. It stresses the sound of thunder and the strike itself.
• Related鳴神なるかみWrittenAn archaic, elegant name for thunder, found mainly in waka poetry and literature.
• Related迅雷じんらいWrittenA written word for a swift, violent peal of thunder; used figuratively for great speed, as in 「迅雷の如く」.
• Related雷火らいかWrittenA flash of lightning, or a fire started by a lightning strike; a highly literary word.
• Related雷公らいこうWrittenAn archaic word for the thunder god, or for thunder itself; not used in everyday speech.

In everyday speech, lightning is 「稲妻」 or 「稲光」; thunder and strikes are 「雷」. 「電光」 is a written word, seen mainly in 「電光石火」 and electronic displays like 「電光掲示板」. The rest are written or special-purpose: 「雷光」 and 「雷火」 for lightning's light or lightning-caused fire, 「霹靂」 and 「迅雷」 for thunderclaps (often figurative), 「鳴神」 and 「雷公」 archaic, and 「ライトニング」 in names and titles.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. かみなりの放電ほうでんによる発光はっこう現象げんしょう。
2. 電気でんきの光ひかり。