The word "who" can commonly be replaced by several synonyms that possess the same or similar meanings in various contexts. Some of these synonyms include "whomever," "whatever person," and "someone." Other synonymous words for "who" include "whosoever," "whosever," and "whomsoever." Additionally, "whichever individual," "whichever one," and "whose person" are also commonly used synonyms for "who." The use of these synonyms can add variety to writing and help avoid repetition of the same words. A writer can choose the most appropriate synonym for "who" according to the sentence structure, tone and context of the writing.