There are several synonyms for the term "birth mother." Some of these include biological mother, natural mother, genetic mother, and first mother. These terms are often used to differentiate between the birth mother and an adoptive mother. Adoptive families use these terms out of respect for the mother who gave birth to their child. In some cases, the term "birth mother" can be considered offensive, so it's important to use the appropriate terminology when referring to a child's biological parent. Regardless of the wording used, the relationship between a birth mother and her child can be complex and emotionally charged, warranting sensitivity and compassion from all those involved.