The word "co-nates" can refer to blood relatives or people who share a common ancestor. Synonyms for "co-nates" include kinsfolk, kinfolk, kinsmen, kin, clan, tribe, blood relations, family, and relatives. These terms can refer to people who are related by birth or marriage and who share a common genetic history. Additionally, the word "co-nates" can also refer to people who share a common cultural or ethnic background. Synonyms for this usage include ethnic group, people, community, and cultural group. Overall, there are many words that can be used to describe co-nates, each with its own nuances and meanings.