thunder
Word family
- thunderousadjectiveB2
- thunderstormnounA2
- thunderboltnounB1
- thunderclapnounC1
- thunderingadjectiveB2
Synonym discussion
Sense: noun/1
Thunder is the general uncountable term for the loud sound produced during a storm. A thunderclap is a single, sharp, explosive thunder sound that comes and goes suddenly — more specific and countable ('a thunderclap woke me up'). A crash is a broader term for any loud breaking or hitting noise, not limited to storms ('the crash of a falling tree'). A boom describes a deep, resonant sound that carries a long distance, often from explosions or cannon fire as well as thunder ('the boom of fireworks'). A rumble is a lower, continuous rolling noise that lasts longer and is less sharp than a thunderclap or a crash. For weather contexts, native speakers commonly pair these with 'thunder': you hear a rumble of thunder (distant), a roll of thunder (building up), a crash of thunder (sudden and close), or a clap of thunder (single explosive burst).
Common collocations
Etymology
Thunder comes from Old English 'thunor', which itself traces back to the Proto-Germanic '*thunraz' — a word that ancient Germanic peoples used both for the weather phenomenon and for their god of thunder (compare the Norse god Thor, whose name comes from the same root). The word is related to Latin 'tonare' (to thunder) and ultimately to a Proto-Indo-European root meaning 'to resound' or 'to make a loud noise'. The verb form developed naturally from the noun in Old English times.