0 the member of a family who earns the money that the family needs:
1 the person in a family who works to provide the money that the family needs to live on:
She’s always been the breadwinner for her family.
2 the member of a family who earns the money that the family needs to live:
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.