Co-mother is a term used to describe a woman who is raising a child together with another woman who is also the child's mother. However, there are several other synonyms used in the context of co-mothering. These include "parenting partner," "coparent," "family member," "contributing parent," "other mother," and "second mom." These terms highlight the fact that the person in question is not just a friend or a babysitter but plays an integral role in the child's life. Ultimately, these synonyms serve to acknowledge the diverse and evolving nature of family structures, where love and care are the most important factors rather than strict definitions.