There are multiple synonyms for the phrase "more quadruplicate." Some of these synonyms include "fivefold," "quintuple," "quintuplicate," "five times," and "fivefold increase." These phrases all indicate an increase of something that is five times its original amount. For example, if someone said "she made a more quadruplicate amount of money this year," it could be interpreted as meaning that she made five times as much money as she did the previous year. Other possible phrases that could be used to convey the same meaning include "five times larger," "increased by five times," and "multiplied by five." Overall, there are many different ways to express the concept of a fivefold increase, making it easy to communicate this idea using a variety of phrases and synonyms.