Proliferates is a word that signifies the rapid and extensive growth of something; be it objects, ideas or living organisms. The word has multiple synonyms depending on the context or usage. Some commonly used synonyms of proliferates include multiplies, propagates, expands, spreads, burgeons, mushrooms, escalates and snowballs. These words bring out different nuances of the meaning of proliferates; some imply exponential growth and others suggest wide-ranging distribution. When choosing a synonym for proliferates, it is advisable to select a word that best conveys the intended meaning and accurately captures the tone of the sentence.