lightning
US /ˈlaɪt.nɪŋ/
UK /ˈlaɪt.nɪŋ/

1.
fulmine, lampo
the occurrence of a natural electrical discharge of very short duration and high voltage between a cloud and the ground or within a cloud, accompanied by a bright flash and typically also thunder
:
•
The sky was lit up by a sudden flash of lightning.
Il cielo fu illuminato da un improvviso lampo di fulmine.
•
We saw lightning strike a tree in the distance.
Abbiamo visto un fulmine colpire un albero in lontananza.
1.
fulmineo, velocissimo
very fast; with great speed
:
•
He moved with lightning speed to catch the ball.
Si mosse con velocità di fulmine per prendere la palla.
•
The decision was made with lightning quickness.
La decisione fu presa con rapidità di fulmine.