Translation guide
The concept of doing something together at the same time, in harmony or simultaneously. In Japanese, this is expressed through adverbs, verbs, and set phrases depending on whether the focus is on synchronized action, speaking in chorus, or musical harmony.
Expressing that two or more people perform an action simultaneously, often with a sense of coordination.
Adverb meaning 'all at once' or 'in unison'. Used when a group acts simultaneously, often in response to a signal or spontaneously.
The students stood up in unison.
The audience applauded in unison.
Means 'at the same time' or 'simultaneously'. More neutral than 一斉に, and can be used for both coordinated and coincidental simultaneous actions.
The two started speaking in unison.
Literally 'aligning voices', used specifically for speaking or shouting together in chorus.
The children sang in unison.
Describing musical performance where multiple voices or instruments sound the same note or melody together.
Loanword from English, used in musical contexts to mean singing or playing the same melody in unison.
The choir began singing in unison.
Noun meaning 'singing in unison' (as opposed to harmony). Often used in formal or choral contexts.
Technical term meaning 'the same sound' or 'unison', used in music theory.
Expressing that people are in complete agreement, acting as one.
一斉に implies a coordinated, often intentional simultaneous action by a group, while 同時に simply means 'at the same time' and can be used for coincidental events. For 'in unison', 一斉に is usually more appropriate.
The students replied in unison.
The phones rang at the same time by chance.
国歌を斉唱する。
To sing the national anthem in unison.
この部分は同音で演奏される。
This part is played in unison.
Everyone supported the disaster area in unison.