Is *domo arigato* considered formal?


Is _domo arigato_ considered formal?

Context: Buying something at a store, thanking a waiter, etc




ありがとう、どうもありがとう、ありがとうございます、どうもありがとうございます is polite in order of increasing. I
think ありがとう、どうもありがとう is usually used in this context but it is better to use
ありがとうございます and どうもありがとうございます for important person like your master.




ありがとう、どうもありがとう、ありがとうございます、どうもありがとうございます is polite in order of increasing. I
think ありがとう、どうもありがとう is usually used in this context but it is better to use
ありがとうございます and どうもありがとうございます for important person like your master.

