As many is a phrase that refers to a large amount of quantity or number of things. There are various synonyms that can be used to replace the phrase as many. Words such as numerous, prolific, multiplicity, countless, abundant, myriad, copious and several can be used in different contexts to express the same meaning of as many. Furthermore, synonyms like a lot of, a great deal of, heaps of, full of, teeming with, and overflowing with can also be used to replace as many, depending on the context and what the sentence is referring to. It's important to note that when looking for synonyms to use in a sentence, context and the intended meaning should always be considered.