Antonomasia is a literary device that is often used in creative writing and poetry to replace a name with a descriptive term or phrase. It is also known as periphrasis or a circumlocution. There are many synonyms for this term, including metonymy, epithet, nickname, alias, or sobriquet. Metaphorically speaking, antonomasia is a way to refer to someone or something without using their real or full name. For instance, using Captain America to refer to Steve Rogers. The use of antonomasia can make the text more colorful and interesting, as it adds a descriptive flair to the sentence.