同時(どうじ)

どうじ
noun
simultaneous, same time
1. simultaneous, at the same time
Occurring or done at the same moment in time.
二(ふた)つのことを同時(どうじ)にできません。
I can't do two things at the same time.
同時(どうじ)に始(はじ)めましょう。
Let's start at the same time.
それと同時(どうじ)に、問題(もんだい)も生(しょう)じた。
At the same time, problems also arose.
Common conjunctive use
同時(どうじ)通訳(つうやく)は難(むずか)しい仕事(しごと)だ。
Simultaneous interpretation is a difficult job.
彼(かれ)は仕事(しごと)と勉強(べんきょう)を同時(どうじ)にこなしている。
He is managing work and studies at the same time.

同時(どうじ) means "the same time" or "simultaneous." Composed of 同(どう) (same) + 時(じ) (time). Functions as a noun but commonly used adverbially with に.

KEY PATTERNS:

  • 同時(どうじ)に: at the same time
  • ～と同時(どうじ)に: at the same time as ~; while also ~
  • それと同時(どうじ)に: at the same time (conjunctive, connecting two events)

COMMON COMPOUNDS:

  • 同時(どうじ)通訳(つうやく): simultaneous interpretation
  • 同時(どうじ)進行(しんこう): simultaneous progress, running in parallel
  • 同時(どうじ)多発(たはつ): occurring simultaneously in multiple places
  • 同時(どうじ)開催(かいさい): held at the same time

GRAMMAR NOTE:
～と同時(どうじ)に is frequently used as a conjunction meaning "at the same time as" or "while also." It can connect two simultaneous actions or add a second related point: 便利(べんり)であると同時(どうじ)に危険(きけん)でもある (it is convenient but at the same time also dangerous).

core
Added 2026.1.9 20:41 · Revised 2026.3.29 18:08
01500/01592_douji