A household in which both spouses work and earn income; dual-income (household).
最近は共働きの家庭が増えている。
Recently the number of dual-income households has been increasing.
子育てと仕事を両立するために共働きにした。
We both work so we can balance childcare and jobs.
共働きだと家事の分担が重要になる。
When both partners work, division of housework becomes important.