- Backpedal Verb
- Backplane Noun
- Backplate Noun
- Backporting Noun
- Backpressure Noun
- Backpropagation Noun
- Backreaming Noun
- Backreef Noun Adj
- Backrest Noun
- Backrolling Noun
- Backroom Adj Noun
- Backsaw Noun
- Backscatter Noun Verb
- Backscattered Adj
- Backscattering Noun
- Backscratcher Noun
- Backseat Noun
- Backset Noun
- Backsheesh Noun
- Backshell Noun
- Backshift Noun Verb
- Backside Noun
- Backsiding Noun
- Backsight Noun
- Backslant Noun Verb
- Backslap Verb Noun
- Backslapper Noun
- Backslapping Noun Adj
- Backslash Noun
- Backslide Verb
- Backslider Noun
- Backsliding Noun
- Backslope Noun
- Backsloper Noun
- Backspace Noun Verb
- Backspacer Noun
- Backspacing Noun
- Backspin Noun
- Backsputtering Noun
- Backstab Verb Noun
- Backstabber Noun
- Backstabbery Noun
- Backstabbing Noun Adj
- Backstage Adj Adv Noun
- Backstairs Adj Noun
- Backstay Noun
- Backstep Noun Verb
- Backstepping Noun
- Backstitch Noun Verb
- Backstitching Noun
- Backstop Noun Verb
- Backstoping Noun
- Backstory Noun
- Backstrain Noun
- Backstrap Noun
- Backstrapping Noun
- Backstreaming Noun
- Backstretch Noun
- Backstroke Noun Verb
- Backstroking Noun