The term "man-wife" is not widely used in modern-day language. However, there are several synonyms that can be used. The most commonly used synonym is "husband." Other synonyms include "spouse," "partner," and "better half." These terms are gender-neutral and can be used to refer to either a man or a woman in a committed relationship. Other informal terms that can be used include "hubby," "babe," and "significant other." Regardless of the term used, it is important to remember that language is constantly evolving and it is crucial to use inclusive language that does not marginalize individuals or groups based on their gender or sexual identity.