Definition of "brewing"

brewing

/ˈbɹuːɪŋ/

verb
1. present participle and gerund of brew
noun
countable and uncountable, plural brewings
1. The production of alcoholic beverages, such as beer, by fermentation; the process of being brewed.
2. The business or occupation of a brewer.
3. The quantity of a brew made in a single batch.
  Quotations
  The four last brewings, in which the quantity of yeast added was smaller than in the six first, took place during the month of May, when the heat is apt to make the fermentation run to excess.
  1824, Encyclopaedia Britannica
4. The forming of a storm or the gathering of clouds.