'Neighbour's' in the Bible

Moreover thou shalt not lie carnally with thy neighbour's wife, to defile thyself with her.

And the man that committeth adultery with another man's wife, even he that committeth adultery with his neighbour's wife, the adulterer and the adulteress shall surely be put to death.

And if thou sell ought unto thy neighbour, or buyest ought of thy neighbour's hand, ye shall not oppress one another: