"brewing" in the noun sense
1. brewing
the production of malt beverages (as beer or ale) from malt and hops by grinding and boiling them and fermenting the result with yeast
"brewing" in the verb sense
1. brew
prepare by brewing
"people have been brewing beer for thousands of years"
2. brew
sit or let sit in boiling water so as to extract the flavor
"the tea is brewing"
Source: WordNet® (An amazing lexical database of English)
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