noun, used as a suffix, noun
soiling; making dirty; polluting
Used as a suffix attached to nouns to indicate that something gets dirty or causes dirtiness. Also used as a standalone noun for the act or state of soiling.
手汚しにならないように気をつけてください。
Please be careful not to get your hands dirty.
この作業は服の汚しが避けられない。
This work inevitably soils your clothes.
noun, used as a suffix, noun
Used as a suffix to indicate that something brings shame or dishonor. Often attached to nouns like 名 (name) or 家 (family).
そんなことをしたら家の汚しになる。
Doing such a thing would bring disgrace to the family.
彼の行動は名の汚しだ。
His actions are a stain on his name.
noun
chopped fish, shellfish or vegetables dressed with sauce
Culinary term for finely chopped seafood or vegetables mixed with miso or another sauce. Often seen in traditional Japanese cuisine.
今日の小鉢はまぐろの汚しです。
Today's side dish is chopped tuna dressed with miso.
Derived from the verb 汚す (よごす, 'to make dirty') with the nominalizing suffix し, which can indicate an action or its result. The shame sense is a metaphorical extension of 'staining' one's honor.