What does the term 'cru' signify in French wine classification?

The term 'cru' specifically relates to the quality of the vineyard or estate in the context of French wine classification. It is a designation that indicates the reputation and pedigree of a particular vineyard site, often associated with the specific terroir (the environmental conditions, farming practices, and traditions of a specific area). In France, certain classifications, such as "Grand Cru" or "Premier Cru," highlight wines from esteemed vineyards known for producing exceptional quality grapes and subsequently high-quality wines. Thus, 'cru' serves as a key term in evaluating the potential quality and prestige of the wine produced. This classification system reflects historical values assigned to regions and specific sites, making 'cru' a significant aspect of understanding French wines.