- boarded ceiling
- boarding school
- boast
- boasting
- boat house
- boat people
- boat station
- bob-run
- body
- body bellows
- body brick
- body corporate
- bog drainage
- boggy
- bogie
- boiler
- boiler drum
- boiler grate
- boiler iron
- boiler plate
- boiler room
- boiler seat
- boiler steel
- boiler unit
- boilerplate
- boldface
- bole
- bollard
- bolometer
- bolomter
- bolson plain
- bolster
- bolt
- bolt chisel
- bolt clipper
- bolt log
- bolt timber
- bolted connection
- bolting
- bomb shelter
- bombdement
- bond
- bond area
- bond strength
- bonded reinforcement
- bonder
- bone coal
- book repository
- boolean values
- boom angle
- boom cable
- boom derrick
- boom hoist
- boom point
- boon
- booster
- booster heater
- booster transformer
- boot sector
- bootstrap loader
- borax bead
- bord
- border stone
- bore
- bore bit
- bore mud
- bored chips
- bored pile
- borehole casing
- borehole priming
- borehole record
- borehole tubing
- boric oxide
- boring bar
- boring log
- boring method
- boring pump
- boring site
- boring tower
- borosilicate glass
- borrow material
- borrow working
- borrowed light
- boss
- bossage
- Boston ridge
- botanical garden
- both
- bottle gas
- bottle jack
- bottle tap
- bottom discharger
- bottom dredging
- bottom flange
- bottom moraine
- bottom raker
- bottom slab
- bottom step
- bottom tunnel
- bottoming