Much has 11 different meanings across 5 categories:
(quantifier used with mass nouns) great in quantity or degree or extent
"not much rain"
"much affection"
"much grain is in storage"
Large, great.
to a very great degree or extent
"I feel a lot better"
"we enjoyed ourselves very much"
"she was very much interested"
"this would help a great deal"
(degree adverb used before a noun phrase) for all practical purposes but not completely
"much the same thing happened every time"
"practically everything in Hinduism is the manifestation of a god"
frequently or in great quantities
"I don't drink much"
"I don't travel much"
To a great extent.
A large amount of.
A large amount or great extent.