lightning1/ˋlaItnIŋ; ˈlaItnIŋ/n [U] a bright flash of electrical light in the sky during a storm 闪电: Several trees were struck (=hit)by lightning . 几棵树被闪电击中。thunder and lightning 雷电交加
lightning2adj [only before noun 仅用于名词前] very fast 很快的: a lightning attack 闪电般的袭击