- blessed in conuubial happiness
- bindery
- black-lead
- biochemical
- biochemistry
- black swan
- biogas
- bioinformatics
- biological clock
- black flax seed
- black magic
- black out
- black something out
- black person
- breed like rabbits
- breathless
- break out
- brazen it out
- bravo
- bravery
- brassy
- brain-teaser
- brahmin colony
- boycott
- bitterness
- box office
- bowyer
- bounce back
- bore
- bougainvillea
- bottleneck
- botox
- bothersome
- boil something down
- boring
- boredom
- be getting at
- booty
- bookseller
- book stall
- boon
- book in
- booby hatch
- bondman
- buxom
- bonapartist
- bon mot
- bolus of food
- bolt upright
- bog someone down, bog something down
- be in sympathy with
- bodily pain
- bodily embellishments
- blue-breasted quail
- bust
- blue water
- blue sky
- blue planet
- butter someone up
- blue colour
- blue chip
- blowsy
- by oneself
- be lousy with
- blow great gun
- be mad with rage
- blow
- be no judge
- be not as other men are
- bliss
- blessed
- black-fish
- be on edge
- black sparrow
- black sea
- butter scotch
- be on trail
- black salt
- black pomfret
- by means of
- bobbin
- be out
- butter milk and water mix
- black panther
- be pressed for
- black monkey
- black mole
- bin
- bigolia indica
- bicyclist
- bicycle
- bicas
- bibliometric
- bibliography
- bible
- biannual
- bewray
- be sick retch
- bevel
- bimbo