Kamsahamnida is a Korean word that translates to 'Thank you' in English. It's a common expression used to show gratitude in various situations, from casual interactions to formal settings. The level of formality can be adjusted by adding suffixes to the word, such as 'Kamsahamnida-yo' for polite conversation or 'Gamsahamnida' for a more formal setting. Understanding the correct context for its use is essential in Korean culture.