What is the phrase used when bowing to a Grand Master?

The phrase used when bowing to a Grand Master is "Kwan Chang Nim Kae Dehayo Krung Rye." This expression is significant in martial arts as it conveys a respectful acknowledgment of the Grand Master's status and expertise. It is a culturally rooted phrase that embodies the values of respect and hierarchy within the martial arts community, which is crucial for maintaining tradition and honor.

In the context of the other options, "Kook Ki Eh Dehayo Kyung Rye" is a related respectful greeting often used in a national context or to show respect specific to country representation. "Gamsa Hapnida" translates to "thank you" in Korean, expressing gratitude rather than respect specifically for a Grand Master. "Annyung Haship Nikka" means "How are you?" which is a casual greeting and does not hold the same level of deference or formality associated with bowing to a Grand Master. Therefore, "Kwan Chang Nim Kae Dehayo Krung Rye" is the appropriate phrase that reflects the required respect in that context.