Your wife's sister's husband is your wife's brother-in-law, but is not related to you.
You are brother in laws.
Your wife's brother is your brother-in-law.
Husband and wife relationship is called a marriage.
You are your brother's wife's brother-in-law, if you are male. But your brother's wife can also have brothers-in-law who are not related to you or to your brother. They would be the husband's of the wife's sisters.
I cannot see why not. There is no blood relationship between you and your sisters ex-husband.
A widowed relationship is when the wife's husband dies or gets murdered.
Brother-in-law
Wife and husband.
Sister in law
Nothing, your husband's brother is your brother in law but his wife isnt related
Your sister's husband is your children's uncle. They are his nieces and nephews.
Step-dad
No you can't have a wife, a girlfriend, a husband, a boyfriend, or anything, that involves a relationship.