- Backfriend Noun
- Backfurrow Noun Verb
- Backgammon Noun Adj
- Background Noun Adj Verb
- Backgrounder Noun
- Backgrounding Noun Pres. Participle
- Backhand Noun Adj Verb Past Participle
- Backhander Noun
- Backhanding Noun Pres. Participle
- Backhaul Noun Verb Adj
- Backheating Noun Adj
- Backheel Noun Verb Adj
- Backhoe Noun Adj Verb
- Backhouse Noun Pnoun
- Backing Noun Adj Pres. Participle
- Backlapping Noun Adj
- Backlash Noun Verb Adj
- Backlatcher Noun Adj
- Backlight Noun Verb Adj
- Backlighting Noun Pres. Participle
- Backliner Noun
- Backlining Noun
- Backlist Noun Verb Adj
- Backlog Noun Verb Adj
- Backlogging Noun Pres. Participle
- Backman Noun Pnoun
- Backmarker Noun Adj
- Backorder Noun Verb
- Backout Noun Verb
- Backpack Noun Verb Adj
- Backpacker Noun Adj
- Backpacking Noun Adj
- Backpage Noun Adj Pnoun
- Backpay Noun Verb Adj
- Backplane Noun Adj
- Backplate Noun Adj
- Backporting Noun Pres. Participle
- Backpressure Noun Adj
- Backpropagation Noun Adj
- Backreaming Noun Pres. Participle
- Backreef Noun Adj
- Backrest Noun Adj
- Backrolling Noun Pres. Participle
- Backroom Adj Noun
- Backsaw Noun Adj
- Backscatter Noun Verb Adj
- Backscattering Noun Adj
- Backscratcher Noun Adj
- Backseat Noun Adj Verb
- Backset Noun Adj Verb
- Backsheesh Noun Verb Adj
- Backshell Noun Adj
- Backshift Noun Verb Adj
- Backside Noun Adj
- Backsiding Noun Pres. Participle
- Backsight Noun Verb Adj
- Backslant Noun Verb Adj
- Backslap Verb Noun
- Backslapper Noun Adj
- Backslapping Noun Adj