noun
Refers to the person who earns the primary income for a household. Similar to 稼ぎ手, but 稼ぎ主 emphasizes the main earner role.
See also: 稼ぎ手 (かせぎて)
彼は一家の稼ぎ主だ。
He is the breadwinner of the family.
稼ぎ主が失業すると家計が苦しくなる。
When the breadwinner loses their job, the household finances become strained.