Breadwinner; earner — a person who earns income for a household or organization.
家計の主な稼ぎ手は父だが、最近は母も働いている。
The main breadwinner of the household is my father, but recently my mother has been working too.
会社は若手を次の稼ぎ手として育てようとしている。
The company is trying to train younger employees to become the next earners.
フリーランスは安定した稼ぎ手とは言えない場合もある。
Freelancers are sometimes not considered stable earners.