Child Trends and Start Early have partnered to better understand what early childhood systems builders need to build and support more equitable systems. The briefs in this series, called Conversation Starters, define a new framework for early childhood systems that center families' experiences and raise key considerations and next steps for implementing the framework. This piece offers a framework for systems builders to co-define "with families" what it would mean for their system to be "family-centric." [For the companion piece, "Authentic Family Engagement in Family-Centric Early Childhood Systems Building. Conversation Starters on Building More Equitable Early Childhood Systems," see ED628965.]