Backbone
Big, full-bodied wines with evident tannin and/or acidity.

Backward
A wine that is not ready to drink.

Balance
The relationship of components of wine - acid, fruit, tannins, alcohol.

Barrel
Used to store wine between fermentation and bottling, absorbs some flavour and tannins from the wood.

Blending
The mixing of two different types of wine.

Blind Tasting
Tasting and evaluating wine without knowing what it is.

Body
A tasting term describing the weight and fullness of a wine that can be sensed. (Light, medium or full-bodied).

Bouquet
A wine providing an array of aromas, other that that of just grape.