The phrase "was at" can be replaced with various synonyms depending on the context in which it is used. Some examples include "stood at," "sat at," "waited at," "remained at," "attended," "resided," "stayed," and "occupied." Each of these terms has a slightly different connotation and can be used to add detail and depth to the sentence. For instance, "stood at" could imply that the individual was actively engaged in a particular activity or conversation, whereas "resided" indicates a more permanent place of living. By utilizing synonyms for "was at," writers can vary their language and communicate more precisely with their audience.