(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.
社会(しゃかい)(かす)だ。
The dregs of society.
(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