many (EN)
determiner, pronoun

determiner “many”

many
  1. a large, unspecified number of
    Many students in the class prefer pizza over hamburgers.
  2. used to specify, compare, or demonstrate an exact or approximate number
    She read as many books as she could during the summer break.
  3. used with singular nouns and verbs to indicate a large number of instances of something
    Many a student has struggled with this math problem.

pronoun “many”

many
  1. refers to a large group of people or things without specifying exactly how many
    Many in the class passed the exam, but some did not.