A kind note is a written or typed message that expresses gratitude, appreciation or conveys a positive sentiment in a gentle and considerate manner. It is typically used to acknowledge or thank someone for something they have done, often accompanied by words of encouragement or support. The phrase can also refer to a written communication that is intended to be helpful or constructive, even if it contains criticism or negative feedback. Overall, a kind note is intended to be courteous, compassionate and considerate in its delivery of information or feedback.