(euphemistic) Any of various taboo words beginning with the letter B, particularly bitch.

(music) The major key with B as its tonic, with the notes B, C♯, D♯, E, F♯, G♯, and A♯, the key signature of which has five sharps. / (music) The major chord with a root of B.

(trains) A locomotive with an engine, generator, and traction motors, but without a control cab.

a pesticide consisting of hydrocyanic acid absorbed on pellets of diatomaceous earth; when exposed to the air hydrogen cyanide is released; used most infamously during the Nazi Holocaust in some gas chambers.

(US, slang) A bargirl.

(slang) A woman who performs breakdance; a female breaker. / (slang) A female member of the hip-hop subculture.

Initialism of Bosnia and Herzegovina.

Initialism of Building and Housing.

Abbreviation of backward compatibility.

Abbreviation of because.