"Manfriend" is a colloquial term that's commonly used to describe a male romantic partner. However, it's not the most common or widely accepted term for such a relationship. In fact, there are several synonyms that can be used in place of "manfriend" to better describe the nature of the relationship. Some popular alternatives include "boyfriend," "partner," "significant other," "lover," and "companion." Each of these words carries a unique connotation and may be more appropriate in different situations. Ultimately, the most important thing is to choose a term that accurately reflects the nature of the relationship and feels comfortable for both parties.