'Relations' in the Bible

And Naomi said to her daughter-in-law, May the blessing of the Lord, who has at all times been kind to the living and to the dead, be on him. And Naomi said to her, The man is of our family, one of our near relations.

So Boaz took Ruth to be his wife, and when he had marital relations with her, the LORD made her conceive, and she bore a son.