The secondary plot of a piece of literature, television, etc., contrasted with the primary A plot.

A cocktail shooter consisting of three distinct layers of coffee liqueur, Baileys and Grand Marnier.

(music) A guitar accessory that enables a player to mechanically bend the B-string up a full tone to C-sharp.

plural of B-bender

An informal list of people in any of several categories (but especially in the entertainment industry) who are admired, desirable or bankable, but not as much as the people on the A-list.

A water soluble form of the fungicide Amphotericin B.

plural of B-side

plural of B-unit

plural of B-boy

plural of B-tree