This article discusses various slang terms for saying “thank you” in Japanese, including the most common expression of gratitude "arigato". Other popular expressions include "domo arigato", which means "thank you very much" and "domo sumimasen", which means "excuse me" or "I apologize". In informal situations among friends or family members, it is common to use slang terms such as otsukare and doumo when expressing gratitude. In more formal situations, honorific expressions such as gokurosama desu may be used instead. Knowing how to properly express gratitude in Japanese will help ensure polite and respectful conversations at all times.