(with a door) with a clatter; noisily; flinging open
彼はガラリとドアを開けて部屋に入ってきた。
He flung the door open with a clatter and entered the room.
ガラリと戸を閉める音が夜中に響いた。
The sound of a door slamming echoed in the middle of the night.
(falling) with a clatter; with a crash
棚の本がガラリと落ちて、床に散らばった。
The books fell off the shelf with a crash and scattered on the floor.
台風で看板がガラリと剥がれた。
The signboard was ripped off with a crash in the typhoon.
to change completely; totally; dramatically; suddenly (often used for atmosphere, appearance, or tone)
話題が変わって、場の雰囲気がガラリと変わった。
When the topic changed, the atmosphere shifted completely.
部屋をリフォームしたら雰囲気がガラリと良くなった。
After renovating the room, the atmosphere improved dramatically.
彼の態度がガラリと変わり、話は和やかになった。
His attitude changed suddenly, and the conversation became pleasant.
louvre window; louvre door (a window or door with slatted louvers)
台所のガラリが風でガタガタ鳴っている。
The louvre in the kitchen is rattling in the wind.