backpacking
backplane
backplane = motherboard = system board
backrest
backrolling
backroom boys
backscattering
backscratcher
backside
backsight
backslash
backslide
backslider
backsliding
backspace
backspace (BS)
backspace character
backspace key
BACKSPACE statement
backstage
backstairs
backstay
Backstop technology
backstreet
backstroke
backstrokeer
backswept
backtab
backtalk
backtrack