adverb taking the 'to' particle
with a bang; with a crash; with a bump; with a jolt
Describes a sudden, loud impact or collision sound, like something heavy falling or hitting a surface.
本棚ががたんと倒れた。
The bookshelf fell with a crash.
車が
The car jolted with a bump.
adverb taking the 'to' particle
Emphasizes an abrupt, sharp change or movement, often a sudden drop or decline.
気温ががたんと下がった。
The temperature dropped sharply.
売上ががたんと落ちた。
Sales suddenly plummeted.
Onomatopoeic word mimicking the sound of a heavy impact or sudden jolt. The exact origin is uncertain, but it is a conventional mimetic expression in Japanese.