noun
thunder and lightning
Refers to the combined phenomenon of thunder and lightning, often used in literary or descriptive contexts.
雷電が激しく鳴り響いた。
Thunder and lightning raged fiercely.
雷 is the common word for thunder (and often lightning as well), while 雷電 is a more formal or literary compound explicitly meaning 'thunder and lightning'.
Compound of 雷 (rai, 'thunder') and 電 (den, 'lightning'), both Sino-Japanese readings.