The initial idioms of the letter B

bow down before (someone)	bow down to (someone)
bow out	bow out of the running
bow to	bow to demands
bow to the porcelain altar	bowel
bowl	bowl (someone) a googly
bowl of cherries	bowl of cherries, life is just a
bowl out	bowl over
bowl up	bowser
bow-wow	box (oneself) into a corner
box (someone) into a corner	Box and Cox
box clever	box ears
box in	box office
box on the table	box score
box seat	box someone in
box the compass	box up