For no other ears is a phrase used to describe something that is meant for only one person to hear. Some common synonyms for this phrase include "in confidence," "off the record," "between us," "in private," and "behind closed doors." These phrases convey a sense of secrecy and confidentiality, implying that the information being shared is not meant for public consumption. Whether discussing personal matters or sensitive business information, using these synonyms can help convey a sense of trust and respect between the two parties sharing the information. Ultimately, the choice of phrase will depend on the context of the conversation and the level of intimacy between the individuals involved.