The initial idioms of the letter B

Belieber	belief
believe	believe (one's) eyes
believe a word of it	believe ears
believe eyes	believe in
believe it or not	believe me
Believe nothing of what you hear, and only half of	believe of
believe one's ears	Believe you me!
believer	true believer
bell, book, and candle things that are miraculous	bell
bell out	bell the cat
bell the cat, who will	belle of the ball
belly	bellies
bellow out	bells and whistles
belly button	belly fiddle
belly laugh	belly out