- by no means
- babe in the woods
- babel
- baboon
- baby bump
- baby farmer
- by night
- buzzard
- back out of
- back someone up
- back to normal
- back to the drawing board
- buy over
- background score
- backing
- backlash
- backlog
- backrest
- backseat
- backseat driver
- backspace
- butt in
- bad job
- butchery
- busy
- bus speed
- bakelite
- baker
- bakery
- burst at the seams
- bald-headed person
- bald-pate
- ballot box
- burgle
- bureaucrat
- bureaucracy
- bumptious
- bamboo grove
- bamboozle
- backfill
- banyan tree
- bumper
- bar centric
- barb
- backgammon
- bully
- bargain
- bullock cart
- bulge
- bulbous
- barista
- barracks
- build-up
- barring
- barrister
- bartered goods
- build something up
- bascule
- base
- base person
- build something in, build something into
- baseless
- bash
- batta
- batten
- battered
- battery
- battle
- bugler
- battle-front
- budgerigar
- bauble
- burn away
- budge up, budge over
- backwards
- budge
- bucolic
- brotherhood
- broody
- backyard
- bronze
- bronchitis
- bacteriology
- bunker
- bad debt
- be at the zenith
- badger
- bungle
- bronchia
- badly
- badly cooked rice
- be awake to
- bromidrosis
- bromance
- be carried away, get carried away
- broken-down
- broken rice
- broken reed
- broad-minded
- british raja