- Bargaining
- Bariatric
- Baritone
- Bark of trees
- Barnet
- Barometry
- Barrack
- Barren country
- Barrenness
- Barricade
- Barrier
- Bars
- Bartered goods
- Baryon
- Bascule
- Base metal
- Base person
- Base qualities
- Based
- Baseline
- Bashed
- Basilisk glance
- Basket work
- Bass
- Bast
- Bastard
- Bastille
- Bastion
- Bated
- Bathed
- Bathymetry
- Batman
- Baton
- Battlements
- Batty
- Baud
- Bauhinia variegata
- Bavardage
- Bawdy
- Bayou
- Be a party to
- Be all greek
- Be all the rage
- Be as nice as pie
- Be at beck and call
- Be at large
- Be at pains
- Be becoming
- Be caught between two stools
- Be down in the mouth
- Be getting on for
- Be good value for money
- Be in the saddle
- Be in working order
- Be made one
- Be off make off
- Be on ones game
- Be on the danger list
- Be on the pay roll
- Be on the right track
- Be on the trot
- Be on trail
- Be please with
- Befool
- Be thrown into a panic
- Be wild about
- Beached
- Beacon
- Bead
- Bead of pearl
- Beaker
- Beam
- Beaming with joy
- Bean
- Beanpole
- Bear a hand
- Bear the costs
- Bear upon
- Bearers
- Bears
- Beast
- Beasts
- Beat black and blue
- Beat the rap
- Beat the record
- Beatifically
- Beautician
- Beautification
- Beautiful
- Beautiful object
- Beautify
- Beaver
- Beaver away
- Because
- Beck
- Beckoning
- Become a mother
- Become old
- Bed
- Benignant