(かす)

かす
noun
dregs; residue; lees
1. dregs; sediment; residue; lees
The solid matter left after liquid has been pressed or strained from a substance. Most commonly refers to sake lees (酒粕) or the residue from tofu production (おから).
酒粕(さけかす)漬物(つけもの)(つく)る。
I make pickles with sake lees.
コーヒーの(かす)()てないでください。
Please don't throw away the coffee grounds.
(なべ)(そこ)(かす)がたまっていたので、きれいに(あら)った。
There was residue at the bottom of the pot, so I washed it thoroughly.
2. worthless remnant; the worst part
Figuratively, something of no value — the leftover after everything good has been taken. Often used in the expression 絞りかす or 出がらし to describe someone or something drained of worth.
(しぼ)(かす)のような生活(せいかつ)(おく)っている。
He's living a wrung-out, empty life.
あの会社(かいしゃ)優秀(ゆうしゅう)人材(じんざい)()めて、(のこ)ったのは(かす)ばかりだ。
The talented people quit that company, and only the dregs remain.

Written as (かす) for the physical residue sense (especially food-related) or (かす) for the figurative or general sense. In practice, hiragana かす is also common.

The most culturally significant usage is 酒粕(さけかす) (sake lees), which is widely used in Japanese cooking — for marinades, soups (粕汁(かすじる)), and pickling (粕漬(かすづ)け). Sake lees are not waste but a valued ingredient.

COMMON COLLOCATIONS:

  • 酒粕(さけかす): sake lees
  • 粕汁(かすじる): soup made with sake lees
  • 粕漬(かすづ)け: vegetables or fish pickled in sake lees
  • (しぼ)(かす): pressed residue; something wrung dry
  • ()がらし: used tea leaves; something past its prime
  • ()(かす): food scraps, leftovers

SIMILAR WORDS:

  • (のこ)り: remainder — neutral; simply what is left over
  • おから: okara, tofu lees — a specific food byproduct, not pejorative
  • 沈殿物(ちんでんぶつ): sediment — scientific/technical term