When you hear the phrase "word for word letter for letter," it's likely that the words "verbatim" or "exact" come to mind. These words are synonyms for this phrase, meaning that they convey the same idea of a precise, word-for-word replication of something. Other similar words might include "literal," "accurate," or "unmodified." However, it's important to note that there may be subtle differences in connotation or usage between these different synonyms. For example, "verbatim" might be used more commonly in professional or legal contexts, while "exact" might be used more casually in everyday conversation. Regardless of the specific word chosen, the idea of a precise replication of something remains the same.