"Be tender" is a phrase that describes an action or emotion that is gentle, delicate, and caring. There are several synonyms that can be used to convey the same meaning as "be tender". One such word is "soothe", which suggests a calming effect that eases discomfort or distress. "Caress" is another term that implies a gentle touch that is comforting and affectionate. "Nurture" is a verb that suggests taking care and providing support and warmth. "Cherish" is also similar to "be tender" and it denotes holding something dear to one's heart and treating it with love and care. All of these synonyms encapsulate the same sentiment and can be used interchangeably with "be tender".