Japanese grammar · no level in the source
〜とどうじに: meaning and usage
Meaning
At the same time as A. A can be both an action and a state/condition
How to form it
- verb (dictionary form)と同時に
- nounと同時に
- い-adjectiveと同時に
- noun/な-adjective (stem)であると同時に
How it is used
Two uses: with actions, B happens at the same moment as A; with states, one thing is both A and B at once. The second often takes 「〜であると同時に」 and sounds rather formal.
Examples
ドアが開くと同時に、子どもたちが走ってきた。
The moment the door opened, the children came running.
留学は楽しいと同時に、大変なことも多い。
Studying abroad is fun, but at the same time it's often hard.