noun
scrubbing brush; scourer
A stiff brush or abrasive pad used for scrubbing pots, sinks, or other surfaces. Often made from natural fibers or synthetic materials.
鍋をたわしでこする。
I scrub the pot with a scrubbing brush.
台所のシンクをタワシで磨いた。
I polished the kitchen sink with a scourer.
The origin is uncertain. It may be related to the verb たわめる (to bend), referring to the flexible fibers of traditional scrubbing brushes.