"Gomen Nasai" is a Japanese phrase that translates to "I'm sorry" in English. It is commonly used to express apologies in various situations, whether for minor mistakes or more serious offenses. The phrase reflects the importance of politeness and respect in Japanese culture. In everyday interactions, people may say "Gomen Nasai" when they accidentally bump into someone or when they need to apologize for being late. This expression is part of a broader set of social norms in Japan that emphasize harmony and consideration for others, making it a vital aspect of communication in the country.