천둥 Englisch:

Lightning precedes thunder.

It is because light travels faster than sound that we see lightning before we hear thunder.

I had hardly walked a mile when it began to thunder.

Thunder indicates that a storm is near.

To make matters worse, it began to thunder fiercely.

The morning forecast predicted thunder showers later in the day.

Thunder has been explained scientifically, and people no longer believe it is a sign that the gods are angry with them, so thunder, too, is a little less frightening.

It's so muggy; I think it will thunder in a short while.

We took cover from the thunder shower.

Thunder rolled with menacing crashes.

the horses thundered down the race track

to thunder

I don’t mind the lightning, but I’m afraid of thunder.

It was very stormy, with ear-splitting thunder and flashes of lightning across the sky.