Wife-a married woman considered in relation to her spouse.
Husband-a married man considered in relation to his spouse.
Mother-in-law= the mother of one's husband or wife.
Father-in-law=the father of one's husband or wife.
Sister-in-law=the sister of one's husband or wife.
Brother-in-law=the brother of one's husband or wife.
Sibling-each of two or more children or offspring having one or both parents in common; a brother or sister.
Nephew-a son of one's brother or sister, or of one's brother-in-law or sister-in-law
Niece-a daughter of one's brother or sister, or of one's brother-in-law or sister-in-law.
