"Granted that" is a phrase used to introduce a condition or assumption that may be true but is not necessarily proven. Synonyms for this phrase include "assuming that," "presuming that," "if we assume," "granted," "acknowledging," "admitting," "assuming the premise," "taking into account," and "allowing." These phrases can be used to establish a starting point for a discussion or argument, indicating that the speaker agrees to a particular condition or assumption in order to move forward. Using synonyms for "granted that" can make writing and speaking more interesting and varied, while also making sure that the intended meaning is clear to the audience.