The word “many” is primarily used as a determiner or adjective.
As a determiner, it is used to indicate a large number of countable nouns. For example, in the sentence “Many people attended the concert,” “many” quantifies the noun “people.” It shows that there is a considerable number of people, though it does not specify exactly how many.
Additionally, “many” can function in different contexts, such as in questions or negative statements. For instance, in the question “How many apples do you have?” the word again functions to inquire about the quantity of the countable noun “apples.” In a negative statement like “I don’t have many friends,” it emphasizes a small number of friends.
Overall, the versatility of “many” in modifying nouns and its usage in various grammatical contexts confirms its classification as a determiner and adjective.