how kind of you; that's very nice of you
Polite expression used to thank someone for a kind act or offer. Often used as a standalone phrase.
Thank you for your kindness.
That was very kind of you; you really helped me out.
Adverbial use meaning 'kindly' or 'in a kind manner'. Less common than the expression sense; often replaced by 親切に in less formal contexts.
He kindly showed me the way.
Standard polite expression; the kanji 親切 is commonly used.
Formal variant using the honorific prefix 御; less common in everyday writing.
Polite form of 親切に (kindly), with the honorific prefix ご added to the noun 親切 (kindness).