The phrase "went white" is often used to describe a sudden change in someone's complexion due to shock, fear, or other intense emotions. However, there are a variety of synonyms that can convey a similar meaning. Some of these include "paled," "blanched," "froze," "went pale as a ghost," "went ashen," "went chalky," "went ghostly," and "went deathly pale." Depending on the context and the writer's style, any of these synonyms could be used instead of "went white" to convey a character's sudden change in complexion.