expression, suru verb (irregular)
do together; do something jointly
Used when two or more people perform an activity together. Often appears with ～と or ～といっしょに.
友達と一緒に宿題をした。
I did homework together with my friend.
expression, suru verb (irregular)
Refers to physically or conceptually combining things into one group or mixture. Can be used for objects, ideas, or people.
砂糖と塩を一緒にしないでください。
Please don't mix the sugar and salt together.
これらの書類を一緒にしてファイルに綴じた。
I put these documents together and filed them.
expression, suru verb (irregular)
regard in the same light; put in the same category; confuse
Used when treating different things as if they were the same, often with a negative nuance of unfairly equating or confusing them. Common pattern: AとBを一緒にする.
彼は趣味と仕事を一緒にしてはいけないと言った。
He said you shouldn't confuse hobbies with work.
あの二人を一緒にしないでほしい。
I don't want you to lump those two together.
expression, suru verb (irregular)
arrange for (two people) to marry; bring together as a couple
A somewhat old-fashioned expression for matchmaking or arranging a marriage. Often used in the context of parents or go-betweens.
祖母が二人を一緒にしようとしている。
My grandmother is trying to bring the two of them together (as a couple).