We use the quantifiers much, many, a lot of, lots of to talk about quantities, amounts and degree. We can use them with a noun (as a determiner) or without a noun (as a pronoun). …
Many, innumerable, manifold, numerous imply the presence or succession of a large number of units. Many is a popular and common word for this idea: many times.
The meaning of MANY is consisting of or amounting to a large but indefinite number. How to use many in a sentence.