(Quantifier used with mass nouns) Great in quantity or degree or extent

ETYM Cf. Icel. mjök. Related to Much.
1. To a great degree or extent.
2. Very.
3. Frequently or in great quantities; SYN. a great deal, often.
4. (Degree adverb used before a noun phrase) For all practical purposes but not completely; SYN. practically.

1. A great amount or extent
2. Something considerable or impressive