together (of two people); both (of you, them, etc.)
Used when two people do something together or share a state. Often implies joint action or mutual involvement.
二人して同じことを考えていた。
We were both thinking the same thing.
彼らは二人して大笑いした。
The two of them laughed loudly together.
Standard kanji spelling for the phrase.
Variant using numeral 2; common in casual writing.
Phrase composed of 二人 (two people) + して (classical form of する, here functioning as a particle-like element indicating manner or state).