Translation guide
Expresses that two or more actions, events, or processes occur at the same time or in a coordinated, simultaneous manner.
Describing two or more things happening at exactly the same time.
The most common and versatile way to say 'synchronously' or 'at the same time'. Used as an adverb.
The two events occurred synchronously.
They started speaking at the same time.
Noun meaning 'synchronization'. Often used in technical contexts (computers, machinery, data). Can be used with する to mean 'synchronize'.
Data synchronization is complete.
This app synchronizes automatically.
Na-adjective meaning 'synchronous'. More formal and technical than 同時に. Often used in academic or engineering contexts.
Use a synchronous communication protocol.
Loanword from English 'synchro'. Used in casual or specific contexts like swimming (synchronized swimming) or entertainment.
The synchronized swimming performance was beautiful.
Describing actions that are timed to occur together in a planned or rhythmic way, even if not exactly simultaneous.
Means 'in coordination with' or 'matching the timing of'. Used when actions are deliberately synchronized.
Dance in sync with the music.
Literally 'match the timing'. Used when people coordinate their timing for an action.
We all jumped in sync.
Specifically for computing, telecommunications, or electronics where operations are clock-synchronized or happen in real time.
While 同期的 is a direct translation, it sounds stiff and technical. In everyday conversation, use 同時に or 合わせて instead.
同時に simply means 'at the same time' (simultaneous occurrence). 合わせて implies intentional coordination or matching a rhythm.
It started raining at the same time as the thunder. (no coordination)
I walked in sync with his movements.
Share data in real time.
手拍子に合わせて歌う。
Sing in sync with the clapping. (intentional coordination)