(n): anything indispensable
(n): grape juice before or during fermentation
(n): the juice of grapes
(n): the quality of smelling or tasting old or stale or mouldy
(n): having lost purity and freshness as a consequence of aging
(adj): prenominal) -- (highly recommended
(adj): vs. inessential) -- (basic and fundamental
must in the sense of being new wine