'Relations' in the Bible

Mary asked the angel, "How can this happen, since I have not had relations with a man?"

And it came to the ears of her neighbours and relations that the Lord had been very good to her, and they took part in her joy.

And they said, Not one of your relations has that name.

but, supposing him to be in the company that journeyed together, they went a day's journey, and sought him among their relations and acquaintances:

But ye will be delivered up even by parents and brethren and relations and friends, and they shall put to death some from among you,