an establishment where wine is made
"The couple visited the local winery to learn how grapes are turned into fine red wine."
A place where wine is made, or a company that makes wine.
"The family owns a small winery in Napa Valley where they produce their own vintage wines every year."
In plain English: A winery is a place where people make and sell wine from grapes.
"We visited a small winery in Napa Valley to taste their latest vintage."
Usage: The term refers to both the physical production facility and the business entity itself; avoid using it interchangeably with "vineyard," which denotes land dedicated solely to growing grapes rather than processing them into wine.
The word winery is formed by combining the noun wine with the suffix -ry to denote a place or business. It entered English as a straightforward compound meaning an establishment where wine is produced or sold.