()()

おいこす
godan verb
to overtake, to pass, to surpass
1. to overtake, to pass
To catch up with and move ahead of someone or something that was in front.
(まえ)(くるま)()()した。
I passed the car in front.
()()禁止(きんし)
No passing. / Overtaking prohibited.
[Note: Common traffic sign]
自転車(じてんしゃ)(わたし)()()していった。
A bicycle overtook me and went ahead.
高速道路(こうそくどうろ)(おお)きなトラックを()()すのは(すこ)(こわ)い。
It's a little scary to pass a large truck on the highway.
最後(さいご)のカーブで一気(いっき)三人(さんにん)()()して、一位(いちい)でゴールした。
I overtook three people all at once on the final curve and finished in first place.
2. to surpass, to exceed
To go beyond someone in ability, achievement, or quantity.
(おとうと)(あに)()()した。
The younger brother surpassed his older brother.
()()げが去年(きょねん)()()した。
Sales exceeded last year's figures.
弟子(でし)師匠(ししょう)()()すのは(むずか)しいことだ。
It is a difficult thing for a student to surpass the master.
この(くに)人口(じんこう)は、もうすぐ(となり)(くに)()()すだろう。
This country's population will probably surpass the neighboring country's soon.
彼女(かのじょ)努力(どりょく)(つづ)けて、全国大会(ぜんこくたいかい)優勝(ゆうしょう)した先輩(せんぱい)をついに()()した。
She kept working hard and finally surpassed the senior who had won the national tournament.

()()す is a transitive verb (他動詞(たどうし)) meaning to overtake or surpass.

COMPOUND STRUCTURE:

  • ()う (to chase) + ()す (to cross) → to chase and pass over

ASPECT (ている):
()()している indicates an ongoing action of passing or a state of having surpassed.

COMMON PATTERNS:

  • (くるま)()()す (pass a car)
  • ()()禁止(きんし) (no passing)
  • ()()車線(しゃせん) (passing lane)
  • ~を()()して一位(いちい)になる (pass ~ and take first place)

TRAFFIC TERMS:

  • ()()し: overtaking, passing (noun)
  • ()()車線(しゃせん): passing lane
  • ()()禁止(きんし): no passing zone

[Register: Neutral]