"流行 (Popular)" refers to trends, styles, or ideas that are widely accepted and enjoyed by a large group of people. This can include music, fashion, movies, and social media trends. Popularity often reflects current cultural interests and can change rapidly over time. In the context of pop culture, something that is popular can influence various aspects of society, including consumer behavior and social interactions. For example, a popular song may lead to increased sales of related merchandise or inspire dance challenges on platforms like TikTok.