Many
Definition 1 of 3
Pro Tip 1/3
Countable Context
Use with plural nouns to express a high quantity that can be counted. She has read many books this year.
Pro Tip 2/3
Negative Connotations
Sometimes suggests problems or challenges with the large number. Many attempts failed before he succeeded.
Pro Tip 3/3
Not 'Much'
'Many' is for countable items, unlike 'much' used for uncountable. Many friends visited, but not much water was left.