- Bonkers
- Bonnet
- Bonny
- Bony tissue
- Boob
- Boobyish
- Boogers
- Book
- Book keeping
- Book of accounts
- Book of the chronicles
- Book worm
- Booked
- Booklet
- Bookman
- Books
- Bookseller
- Boolean operator
- Boot-licker
- Bootee
- Bootlegger
- Bootless
- Bootstrap
- Booze
- Boozer
- Boozy
- Bordeaux mixture
- Bordering
- Borderline
- Boreal
- Boredom
- Borewell
- Boring
- Born and bred
- Born with silver spoon in the mouth
- Born yesterday
- Borne
- Borrow
- Borrowing
- Bosh
- bossy
- Bot
- Both shores
- Both sides
- Both ways
- Bothered
- Botony
- Bottle fed
- Bouffant
- Bounce
- Bound by duty
- Boundary
- Bounded
- Bounden
- Bounds
- Bouquet
- Bourse
- Bow the knee
- Bow-string
- Bowel
- Bower
- Bowman
- Boyish
- Brach
- Bradypus
- Brahma philosophy
- Brahmam
- Brahmapuranam
- Brahmin street
- Brahmins
- Brain drain
- Brain-wave
- Brainstorm
- Brainstorming
- Bramble bush
- Branching of a tree
- Brand name
- Branded
- Brass
- Brat
- Brawl
- Brawned
- Brawny
- Braying
- Brazen
- Breach of promise
- Breadbasket
- Breadline
- Breadth
- Break away
- Break off
- Break ones word
- Breakable
- Breakage
- Breakdown
- Breakthrough
- Breast the tape
- Breast-fed
- Breath of fresh air
- Breathing