Only with reading かない
Humble term used to refer to one's own wife when speaking to someone outside the family. Not used for someone else's wife.
My wife is out shopping right now.
inside the home; one's family
Refers to the interior of a house or to the members of one's household. Less common in modern conversation; 家の中 or 家族 are more usual.
家内のことは家内で決める。
Family matters are decided within the family.
I'll decide about the move after discussing it with my wife.
I introduced my wife to my coworker.
This weekend I'm going to a hot spring with my wife.
奥様 respectfully refers to someone else's wife, whereas 家内 is the humble term a speaker uses for their own wife when talking to outsiders.
家内 is a humble, somewhat old-fashioned way to refer to one's own wife, whereas 妻 is the neutral modern term.
family safety; peace and prosperity in the household
household industry; cottage industry