dosun
A single, heavy thump — a large object hitting the floor, a person jumping down, or something massive being set down with force.
💡A child jumping off a bunk bed — 'He landed dosun on the floor.'
子供がベッドからどすんと飛び降りた。
The child jumped off the bed and landed dosun.
The heavy box was dropped ___ on the warehouse floor.
重い箱が倉庫の床に○○と落ちた。