'Relatives' in the Bible

Isn't Boaz one of our close relatives? You've been associating with his women servants lately. Look, he'll be winnowing barley at the threshing floor tonight.

along with Mahlon's wife Ruth the Moabite woman. I will marry her to continue the family name as an inheritance, so that the name of the deceased does not disappear from among his relatives, nor from the public record. You are all witnesses today!"