black large square
black medium-small square
black medium square
black nib
black small square
black square button
blade
blastodisc
blast pipe
block man
block post
blossom
blowdown valve
blowfish
blue book
blue circle
blue-grey
blue heart
bluish-grey
boar
body armour
bog
bogey
bogie
bogie frame
bogy
bolster wagon
bomb
bonded labour
bonnet
booking office
bookmark
bookmark tabs
books
boot
booth
booze-up
bottle of spirits
bottle with popping cork
bouquet
bow and arrow
bowling
box
boxed-in locomotive
braces
brake car
brake compartment
brake first
brake rod
brakesman
British English