- Beleaguerment
- Belief
- Believed
- Bell
- Belles-letters
- Belligerent
- Bellow
- Belly
- Belongings
- Beloved
- Beloved man
- Below ground
- Below par
- Below the mark
- Benchmark
- Benchwarmer
- Bend over backwards
- Benedictory address
- Beneficence
- Benevolence
- Benevolent
- Benighted
- Benign tumor
- Bent down
- Benumbed
- Berate
- berber
- Bereavement
- Bereft
- Beret cap
- Berm
- Beryllium
- Beside the point
- Besides
- Besiege
- Besmear
- Best rate
- Bestiality
- Bestman
- Bestow
- Bestowing
- Betel leaf
- Betimes
- Betrayal
- Better cat
- Better safe than sorry
- Between the devil and the deep sea
- Between times
- Between upper and nether millstone
- Bevel
- Bewildered
- Bewitch
- Bewray
- Beyond dispute
- Beyond doubt
- Beyond expectation
- Beyond the pale
- Bhishma
- Bibliomania
- Bicentennial
- Bidder
- Bidding
- Bide
- Bucerotidae
- Buck
- Bucket
- Buckle down
- Bucko
- Bucolic
- Buddha
- Buddhist saint
- Budgerigar
- Buff
- Buffer
- Buffer stock
- Buffer zone
- Buffet
- Bugle
- Build-up
- Builder
- Building
- Buildings
- Built on sands
- Bulb onion
- Bulge
- Bulgur
- Bulimia
- Bulimy
- Bull-at-a-gate
- Bull-calves
- Bulldog
- Bullshit
- Bum
- Bump
- Bumpkin
- Bund
- Bundle of nerves
- Bungalow
- Bunion
- Bunkum