boo, boo hoo, brew, blew
A word that rhymes with blue and starts with B is "blew," which is the past tense of the verb "blow."
One word that rhymes with "cup" and starts with "B" is "blup."
resilient
Butt, buzzcut
bule
bundamentalls
ball
brook
break
There are no words that start with B and rhyme with abrasive.
Bostitch Blair Witch
Bead, bleed, breed.
Brother