When referring to a male person, there are several synonyms that one can use. Some common alternatives include man, guy, gentleman, dude, lad, chap, fella, bloke, and male. Depending on the context, some of these words may be more appropriate than others. For instance, "gentleman" connotes a certain level of refinement and courtesy, while "dude" might be more casual or colloquial. Similarly, "bloke" and "chap" are more commonly used in British and Australian English. Ultimately, the choice of synonym will depend on the tone and style of the writing or conversation in question.