The phrase "hast to oneself" can be expressed using several synonymous terms that convey the same meaning. Some of the synonyms for this phrase are "keeping to oneself," "recording inwardly," "refraining from sharing," "holding in," and "suppressing emotions or thoughts." These synonyms can be used in various contexts where one does not want to express their thoughts or feelings verbally to others. For instance, one can keep their opinion on a matter to themselves without sharing it with outsiders. Alternatively, one can refrain from expressing their emotions outwardly, opting instead to hold them in and record them inwardly. In summary, these synonyms are essential for expressing oneself effectively while maintaining privacy and confidentiality.