越す・超す|こすkosu[0]heiban (flat)

JLPT N3approx.Common
Which spelling to use
越す越す is the most common spelling and the recommended default for beginners; it is written with kanji and kana.
超す超す is a less common spelling of the same word, also written with kanji and kana; you will encounter it less often than 越す.
Definitions
  1. godan verb, transitive verbto cross over (e.g. mountain); to go across
    船ふねは今夜こんや赤道せきどうを越こすだろう。↗
    The ship will cross the equator tonight.
  2. godan verb, transitive verbto get over (e.g. hardship)
  3. godan verb, transitive verbto pass time (e.g. a winter)
    どうやって彼かれらはあのテントで寒さむい冬ふゆを越こせるのだろうか。↗
    How will they get through the cold winter in that tent?
  4. godan verb, transitive verbto surpass; to be better than; to exceedoften 超す
    2030年ねんまでには、全人口ぜんじんこうの21パーセントが65歳さいを越こすようになる。↗
    By 2030, twenty-one percent of its population will be over sixty-five.
  5. godan verb, transitive verbto move house
    おばあさんが隣となりに越こしてきた。↗
    An old lady moved into the place next door.
  6. godan verb, transitive verbto go; to come
    またお越こしください。↗
    Please come again.
Conjugation
Dictionary form越す(こす)
Polite (masu)越します(こします)
Negative (nai)越さない(こさない)
polite (masen)越しません(こしません)
classical zu / nu越さず・越さぬ(こさず・こさぬ)
Past (ta)越した(こした)
polite (mashita)越しました(こしました)
Past negative (nakatta)越さなかった(こさなかった)
polite (masen deshita)越しませんでした(こしませんでした)
Te form越して(こして)
Potential越せる(こせる)
Passive越される(こされる)
Causative越させる(こさせる)
Causative passive越させられる(こさせられる)
Conditional (ba)越せば(こせば)
tara越したら(こしたら)
Volitional越そう(こそう)
polite (mashou)越しましょう(こしましょう)
Imperative越せ(こせ)

Common forms generated by rule; see the senses for honorific or irregular usage.

Synonyms & antonyms
  • Synonym越えるこえるNeutralRoughly synonymous with 「越す」; both work for crossing mountains or borders and getting through a season, as in 「冬を越す」/「冬を越える」, but 「越える」 is more common.
  • Synonym通り越すとおりこすNeutralMeans going past a place and continuing on, or going beyond a certain degree, as in 「呆れを通り越す」; not used for getting over mountains or through winter.
  • Synonym横切るよこぎるNeutralCrosses from one side to the other, e.g. a road or a room, focusing on lateral movement; 「越す」 is about getting over something high or an obstacle.
  • SynonymすぎるNeutralPasses a place or marks time elapsing, and works as a suffix for excess; 「越す」 is about getting over obstacles or through a season.
  • Synonym通り過ぎるとおりすぎるNeutralGoes past a place without stopping, as in 「駅を通り過ぎる」; 「越す」 is about getting over an obstacle or a border.
  • SynonymわたるNeutralCrosses a river, the sea or a road from one side to the other, and extends over a range; 「越す」 is about getting over something high.
  • Synonym突っ切るつっきるCasualGoes straight through a place without detouring, e.g. a plaza or a field; brisk and colloquial in tone. 「越す」 is about getting over something high.
  • Related通り抜けるとおりぬけるNeutralGoes through the inside of a place to the other side, e.g. a tunnel or alley, or out of a situation; 「越す」 is about getting over, not passing through.
  • Related突き抜けるつきぬけるNeutralPierces or bores through to the other side, or goes straight through along a road, as in 「この道を突き抜ける」; 「越す」 is about getting over something high or through a season.
  • Related抜けるぬけるNeutralA very broad word — coming off or out, omissions, fading — that only overlaps with 「越す」 in the sense of passing through a place.
  • Related過ぎ去るすぎさるNeutralTime or things passing away and vanishing, with a retrospective feel, as in 「過ぎ去った日々」; not used for getting over mountains or other obstacles.
  • Related通るとおるNeutralThe most common everyday word: passing by or along, a route running through, or being allowed in; 「越す」 is about getting over something high or an obstacle.
  • Relatedくぐり抜けるくぐりぬけるNeutralDucks through a low or narrow gap, or figuratively through hardship or danger, or evades the law; 「越す」 covers mountains, borders, seasons, not squeezing through.

For getting over mountains or getting through a winter, use 「越す」 or, more commonly, 「越える」. To cross a road, use 「渡る」 or 「横切る」; to go through a tunnel, 「通り抜ける」; to pass a place, 「通る」 or 「通り過ぎる」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese definitions
  1. 高所こうしょや難所なんしょを通過つうかする。
  2. 上うえを通過つうかする。
  3. 追い越おいこす。先さきんじる。
  4. 切り抜きりぬける。へる。すぎる。すごす。
  5. 勝まさる。すぐれる。
  6. (「にこしたことはない」の形かたちで)できるならそのほうが都合つごうがよい。
  7. (「おこしだ」「おこしになる」「おこしいただく」などの形かたちで)来くる。
  8. 移うつる。引っ越ひっこす。
  9. 超こえる。超過ちょうかする。
Kanji in this word
See also

JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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