There are several synonyms for the phrase "doing kindness". Firstly, one could use the word "altruism", which refers to the selfless concern for others. Another option is "charity", which typically involves providing financial support or donating goods to those in need. Additionally, "compassion" implies a strong desire to alleviate the suffering of others. "Benevolence" is also a relevant term, suggesting a desire to promote the well-being and happiness of others. Finally, "generosity" describes the act of being willing to give and help others without seeking anything in return. All these synonyms for "doing kindness" represent the better side of human nature and provide useful alternatives to express it in daily language.