Meaning of LIGHTNING in English

LIGHTNING

■ noun

1》 the occurrence of a brief natural high-voltage electrical discharge between a cloud and the ground or within a cloud, accompanied by a bright flash and often thunder.

2》 [as modifier ] very quick: ~ speed.

Origin

ME: special use of lightening (verbal noun from lighten 2 ).

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.