The phrase "man of the world" can be defined as a person who is experienced and knowledgeable about different cultures and customs. There are several synonyms for this phrase, including cosmopolitan, worldly, sophisticated, urbane, cultivated, and well-traveled. Each of these terms describes an individual who has gained a broad range of experiences and knowledge by interacting with people from various parts of the world. A "cosmopolitan" person, for example, is someone who is familiar with different cultures and is well-traveled. Similarly, a "worldly" individual is someone who is knowledgeable about the ways of the world and has experienced it firsthand. These synonyms can be used interchangeably to describe someone who possesses a global perspective and has an appreciation for different cultures.