together, with one another, along with, both
彼の父も母もともに死んでしまった。
Both his father and mother have died.
適切なダイエットと運動はともに健康にとって重要だ。
A proper diet and exercise are both important for your health.
彼女は夫と運命をともにした。
She shared her fate with her husband.
だがともに生きることはできる
But we can coexist.
— もののけ姫 (1997)