"Septuplicate" is a rare word meaning "to multiply or make seven identical copies." If you find yourself struggling to use this word in your writing, there are many other words that you can use instead. Some different words that might be suitable replacements for "septuplicate" are "reproduce," "replicate," "duplicate," "copy," "recreate," "reiterate," or "reproduce." Each of these words carries slightly different connotations, depending on the specific context in which they are used. So, it's always important to consider the precise meaning you want to convey when choosing your synonyms for "septuplicate".