Being related by blood is a powerful bond. However, when searching for synonyms to describe family connections, there are many other words that can be used. One option might be to refer to someone as a blood relative or kin. There are also more formal terms such as consanguinity. Those who are related might also be considered members of the same progeny, lineage, or clan. Relationships within a family can also be described using words like affiliation, alliance, or connection. Ultimately, there are many ways to describe the ties of blood between people, depending on the context and the specific relationship at hand.